NCERT Solutions for Class 10 Maths Chapter 4 Quadratic Equations (Ex 4.2) Exercise 4.2
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In this chapter, students will learn to form quadratic equations of the form -
ax2 + bx + c = 0, where a, b, c are real numbers.
It is a crucial chapter from an exam point of view. But students may also find situations in their daily life requiring the applications of quadratic equations.
Our expert maths teachers have formulated our study materials in accordance with the NCERT guidelines. Our solutions are one of the best among the many available online - we try to maintain a high standard by making them as accurate as possible.
The answers have been curated to lend more clarity to concepts behind quadratic equations. The study guides are written in clear language to facilitate maximum understanding on the part of the students. It will increase their chances of scoring more marks in their board exam. Download the NCERT solutions PDF offered by us to go through even when you are on the go.
Go through our solutions for all the questions from Quadratic Equation Exercise 4.2 to gain a better understanding.
Exercise 4.2 Class 10 – Question 1
Students are required to find roots for each of the five equations given under this question through the factorisation method. To solve this question, they will first have to split the middle term to find the values of the x. The values of x will be the roots for each of the given equation. Go through our solutions for Class 10 Maths Exercise 4.2, where the concept behind this question has been explained in detail.
Exercise 4.2 Maths Class 10 – Question 2
The second question from Class 10 Maths Exercise 4.2 has provided students with two situation-based questions. To solve this question, students need to read the question appropriately. You have to form the equation based on the information provided in the question.
You can solve the above question if you have a prior understanding of the basic concept behind how quadratic equations are formed. You can also go through our solutions for Quadratic Equation Exercise 4.2 if you have any doubts while attempting this question.
NCERT Solutions For Class 10 Maths Chapter 4 – Question 3
In this question, students have to utilise their fundamental knowledge of quadratic equations to find two numbers whose sum and product are given. To solve, students will have to assume that one of the numbers is x and the other is (27 – x). Using these assumptions, students have to form a quadratic equation.
To know how you can solve similar questions like these, you can go through our solutions for Class 10 Maths Exercise 4.2. Each step has been appropriately analysed to enable you to understand this question correctly.
Class 10 Maths Chapter 4 Exercise 4.2 – Question 4
In this question, students are asked to find two positive integers the sum of whose squares is given. This question will test a student’s understanding of the middle-term factorisation. Another alternative method for solving this equation is sridharacharya.
You can refer to our solutions for Class 10 Maths Exercise 4.2 to know in detail about both of these methods. The explanation for each step has been provided, which will help you to tackle a similar question like this quickly for their upcoming board exams.
Class 10 Exercise 4.2 – Question 5
In this question from Class 10 Maths Exercise 4.2 students are required to possess prior knowledge of Pythagoras theorem to form a quadratic equation. You have to develop the algebraic equation based on your understanding of the Pythagoras theorem and information provided in the text.
Download our NCERT Solutions for Class 10 Maths Chapter 4 curated by expert maths teachers as PDF to review the concepts behind this question.
Quadratic Equation Exercise 4.2 – Question 6
Question 6 is also a situation based question. Students have to read through the information given in the question to form a quadratic equation. The students are required to assume the values as x and solve the equations accordingly.
You should also remember that while the values of quadratic equations can be both positive and negative, in some cases only the positive value is considered. To know more about this, go through our study guide for Class 10 Maths Chapter 4 where we elaborately explain this concept so that students can attempt these questions.
We aim for an overall improvement of a student. Therefore, our expert faculty focuses on curating engaging study materials that will focus on clarity of concepts and enable you to score more in your board exams.
Therefore, our study guide for Class 10 Maths Exercise 4.2 comes with step by step explanation of each maths question. The shortcut techniques in the solutions will enable a student to solve them quickly. Students can also access the solutions for all subjects of all standards in PDF format for free for a much efficient study process.
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