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kozerog [31]
3 years ago
13

Pls help. The answer needs to have 3x^2 in front I’m sure with another answer as well. I asked a different question like this bu

t got it wrong because they only gave me half of the answer.

Mathematics
1 answer:
ANTONII [103]3 years ago
8 0

Answer:

9x^2+21x

Step-by-step explanation:

Area formula for a rectangle: L · W

L=3x

W=3x+7

Since it says multiplying polynomials

I'm guessing you do the Box method

3x(3x+7) = 9x^2+21x

Hope this helps! :)

Correct me if I'm wrong

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