Question

from the sum of 3x2 -5x +2 and -5x2-8x+9 subtract 4x2-7x+9

Answer 1

hope it is helpful for you.....

Answer 2

We need to recall the following rule.

• To perform any mathematical operations addition or subtraction on a polynomial combine the like terms.

This problem is about the polynomial.

Given:

$[(3x^{2} -5x+2)+(-5x^{2} -8x+9)]-(4x^{2} -7x+9)$

$=[(3x^{2} -5x^{2})+(-5x-8x)+(2+9)]-(4x^{2} -7x+9)$

$=(-2x^{2}-13x+11)-(4x^{2} -7x+9)$

$=(-2x^{2}-4x^{2})+(-13x+7x)+(11-9)$

$=-6x^{2}-6x+2$