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Darya [45]
3 years ago
7

BRAINLIEST!!!!!!BRAINLIEST!!!!BRAINLIEST!!!!BRAINLIEST!!!BRAINLIEST!!!!!BRAINLIEST!!!!BRAINLIEST!!!!BRAINLIEST !!!!!!!

Mathematics
2 answers:
faust18 [17]3 years ago
8 0

Answer:

answer C

Step-by-step explanation:

3x^2-4x-8 + (6x^2+2x-3) = 3x^2-4x-8+6x^2+2x-3=9x^2-2x-11

so the correct answer is the C

hope this helps

Airida [17]3 years ago
8 0

Answer:

C.

Step-by-step explanation:

= 3x²-4x-8+6x²+2x-3

= 3x²+6x²-4x+2x-8-3

= 9x²-2x-11

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3 years ago
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6 0
3 years ago
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Can someone help me with this please? Thank you!
Finger [1]

Answer:

528 cm²

Step-by-step explanation:

First I would calculate the area of the side rectangles:

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The area of the middle rectangle:

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I hope this helps!

5 0
2 years ago
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