What is the middle term of the product of (x + 5)(x + 2)? A.7x B.10x C.18x

1 answer:

8 0

When you use F.O.I.L. on problems you get an answer that looks like this; ax^2 + bx + c. The middle term is bx. To find this term we solve out by multiplication. so x*x + 5*x + 2*x + 5*2 or x^2 + 7x + 10, so the middle term is 7x.

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11, 13, 15,..., 57, 59

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$a_1=15,a_n=57,d=6,n=?
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