3 years ago

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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:

Step-by-step explanation:

= 3x²-4x-8+6x²+2x-3

= 3x²+6x²-4x+2x-8-3

= 9x²-2x-11

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