SOLUTION: I forgot how to do these types of problems. 1. (x+4)(x-7) 2. 2x^2(4x^3 + 3y)

Algebra ->  Expressions-with-variables -> SOLUTION: I forgot how to do these types of problems. 1. (x+4)(x-7) 2. 2x^2(4x^3 + 3y)      Log On


   

Question 201934: I forgot how to do these types of problems.
1. (x+4)(x-7)
2. 2x^2(4x^3 + 3y)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
1) x times x=x^2, x times -7=-7x
4 times x=4x, 4times -7=-28
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x^2-7x
4x-28 now combine like terms
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x^2-3x-28
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now you try number 2, remember that exponents add when multipling
Good luck