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nadya68 [22]
3 years ago
11

This is my last question. Please help me!

Mathematics
1 answer:
sesenic [268]3 years ago
3 0

Okay so first you want to simplify the given equation  (7x+3y)(7x-3y)

in order to do this you multiply the first number of the first equation (7x) with the first number of the second equation (7x) this gives you 49x^2

Now you want to multiply the second number of the first equation (3y) by the second number of the second equation (-3y) this gives you -9y^2

Its as easy as pie!

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