Question

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Answer 1

do you know what FOIL is?

Answer 2

do you know what 'distribution' is?

Answer 3

well, FOIL is just a memory device that is based off of the distributive property ... id just distribute tho.

recall that a^2 = a*a

(x+3)^2 = (x+3)(x+3)

then all we need to do is distribute to determine the missing value

Answer 4

there is a formula in general if you like memorizing tons of stuff ...

Answer 5

distribute, and then compare the parts ...

Answer 6

yes, it is 9

Answer 7

yw