Question

Find the product of 9a, 4ab and -2a.

Answer 1

Hint: In this particular type of question we need to multiply all the polynomials keeping the negative sign in mind to find the desired answer.

Complete step-by-step answer:
According to the question, we have to find,
Product of 9a , 4ab and -2a
$9a \times 4ab \times \left( { - 2a} \right) = - 72{a^3}b$

The product is $- 72{a^3}b$.

Note: Note that the multiplication is associative , due to this property we can multiply any term at first while solving such questions. Multiply the variables with variables and the coefficients with coefficients to get the correct answer.