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VARVARA [1.3K]
3 years ago
9

Simplify x^2 + 7y - 4y + 9x^2.

Mathematics
1 answer:
Evgen [1.6K]3 years ago
7 0

Answer:

10x^2+3y

Step-by-step explanation:

Add together the x^2 and the y's, so your equation is (x^2+9x^2)+(7y-4y)=10x^2+3y.

(hope this helps :P)

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