Question

What is the difference of the two polynomials? (9x2 + 8x) – (2x2 + 3x) 7x2 + 5x 7x2 + 11x 11x2 + 5x 11x2 + 11x

Answer 1

we have

$(9x^{2}+8x)-(2x^{2}+3x)$

Step 1

Eliminate the parenthesis

$(9x^{2}+8x)-(2x^{2}+3x)=9x^{2}+8x-2x^{2}-3x$

Step 2

Group terms that contain the same variable

$9x^{2}-2x^{2}+8x-3x$

Step 3

Combine like terms

$7x^{2}+5x$

therefore

the answer is

$7x^{2}+5x$

Answer 2

If you would like to solve (9x^2 + 8x) - (2x^2 + 3x), you can do this using the following steps:

(9x^2 + 8x) - (2x^2 + 3x) = 9x^2 + 8x - 2x^2 - 3x = 7x^2 + 5x

The correct result would be 7x^2 + 5x.