
How do you factor ?
Answer
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Hint:Given polynomial is of degree 2. Polynomials of degree 2 are known as Quadratic polynomials. Quadratic polynomials can be factored by the help of splitting the middle term method. In this method, the middle term is split into two terms in such a way that the polynomial remains unchanged.
Complete step by step Answer:
For factorising the given quadratic polynomial , we can use the splitting method in which the middle term is split into two terms such that the sum of the terms gives us the original middle term and product of the terms gives us the product of the constant term and coefficient of .
So,
We split the middle term into two terms and since the product of these terms, is equal to the product of the constant term and coefficient of and sum of these terms gives us the original middle term, .
Taking x common from first two terms and common from the last terms, we get,
So, the factored form of the quadratic polynomial is .
Note: Splitting of the middle term can be a tedious process at times when the product of the constant term and coefficient of is a large number with a large number of divisors. Special care should be taken in such cases. Similar to quadratic polynomials, quadratic solutions can also be solved using factorisation method. Besides factorisation, there are various methods to solve quadratic equations such as completing the square method and using the Quadratic formula.
Complete step by step Answer:
For factorising the given quadratic polynomial
So,
We split the middle term
Taking x common from first two terms and
So, the factored form of the quadratic polynomial
Note: Splitting of the middle term can be a tedious process at times when the product of the constant term and coefficient of
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