Question

COLOUT OLU

Answer 1

Answer:

The simplified form of the given polynomial equation is:

                  $-2x^2-x+7$

Step-by-step explanation:

We are asked to simplify the given polynomial expression in terms of the variable x.

The algebraic expression is given as:

$(-9x^2+2x+13)-(-7x^2+3x+6)$

On taking out the terms from both the brackets the sign of the terms of the second bracket gets interchanged as there is a negative sign preceding it.

Hence, we get the expression as:

           $=-9x^2+2x+13+7x^2-3x-6$

Now on combining the like terms we get:

       $=-9x^2+7x^2+2x-3x+13-6\\\\\\=-2x^2-x+7$