Without actually performing the operations, determine mentally the coefficient of the x²-term in the simplified form of the foll

Question

3 years ago

9

Without actually performing the operations, determine mentally the coefficient of the x²-term in the simplified form of the foll

owing expression.
(-5²+3x-4) - (-2x²+x-3) + (-9x²+2x-5).

The coefficient of the x²-term is___.
please i really need help with this one i'm stuck.

Mathematics

1 answer:

zavuch27 [327] · Answer 1 · 2022-03-30T00:19:37+03:00

zavuch27 [327]3 years ago

5 0

Answer:

-7

Step-by-step explanation:

Because there is no multiplication, it is just the x^2 terms. There is a -(-2x^2) and a -9x^2, so it is 2x^2 and -9x^2 or -7x^2, so the coefficient is -7.