Question

P=−4b 2 +6b−9

Q=7b 2 −2b−5
​P−Q=
Your answer should be a polynomial in standard form.

Answer 1

−11b^2+8b−4

Explanation:

−4b2+6b−9−7b2+2b+5

Simplify by adding terms.

11b2+8b−4