Let's simplify step-by-step.
5x−3x2+4+x2−4x2−7
=5x+−3x2+4+x2+−4x2+−7
Combine Like Terms:
=(−3x2+x2+−4x2)+(5x)+(4+−7)
=−6x2+5x+−3
Answer:
=−6x2+5x−3
ANSWER:
-6x²+5x-3
(5x-3x²+4)+(x²-4x²-7)
》-3x²+x²-4x²+5x+4-7
》-6x²+5x-3
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