Question

Multiply: (m + 7) (m - 7).
A. m^2 - 49
B. m^2 - 14
C. m^2 - 14m + 49
D. m^2 - 49m + 14

Answer 1

apply the formula
(a+b)(a-b) = a^2 - b^2

Answer 2

That is also known as FOIL.

Answer 3

soo... B?

Answer 4

no

Answer 5

the two 7ms cancel each other out

Answer 6

you do know what FOIL is right?

Answer 7

@Chasitie 7^2 = 49

Answer 8

Yeah but dont give her the answer

Answer 9

C?

Answer 10

i know i know. ok FOIL mean First Outer Inner Last. if you just use the FOIL meathod you will be able to figure it out.

Answer 11

no it is not c and i was talking to hoblos

Answer 12

oh sorry jacobspa.

Answer 13

its good

Answer 14

ok chasitie, use FOIL.

Answer 15

yes that is the easiest way

Answer 16

i use it ALL the time. and to me... its is the only way.