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pickupchik [31]
2 years ago
7

Which expression is equivalent to (7x+9y)2

Mathematics
1 answer:
Arada [10]2 years ago
6 0

Answer:

49x^2+126xy+81y^2

Step-by-step explanation:

Use the square of a binomial theorem

(a+b)^2= a^2+2ab+b^2

Now expand the given equation:

(7x+9y)^2=49x^2+126xy+81y^2

Hope this helps :)

Have a great day!

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