What is the middle term of the product of (x + 5)(x + 2)?

Question

primeralph · Answer

What do you think?

primeralph · Answer

Multiply out.

anonymous · Answer

how?

anonymous · Answer

FOIL; First Outer Middle Last

hero · Answer

(x + 5)(x + 2) = x(x + 2) + 5(x + 2)
                      = x^2 + 2x + 5x + 10
                      = x^2 + 7x + 10

The middle term is 7x

primeralph · Answer

@Hero  What's up with the answers?

hero · Answer

She asked "how". Maybe she never seen it multiplied before. Seeing the process helps.

hero · Answer

I showed her the steps for how to get from the problem to the solution.

primeralph · Answer

Well, you answered another one of her questions earlier the same way but never checked if she actually understood it. That might be better for her.

hero · Answer

If she has any questions concerning how to arrive at the solution or if she is confused about anything it is up to her to ask so that I can clarify such things.

hero · Answer

I'm not her tutor or teacher. I'm just here to assist.

primeralph · Answer

As you like it.