Question

(3x+8)^2
HELP PLEASE?????

Answer 1

9x^2+48x+64

Answer 2

a. 9x2 - 64

b. 9x2 + 64

c. 9x2 + 48x + 64

d. 9x2 - 48x + 64

Answer 3

So C

Answer 4

I got b but it was wrong ):

Answer 5

@Lolovitz Please don't explain answers without explaining them. It doesn't help the student learn and is in fact against the OpenStudy Code of Conduct.

(3x+8)^2 = (3x+8)(3x+8). FOIL.

Answer 6

@Kaggler How did you manage to get B?

Answer 7

OHHHH

Answer 8

@tyteen4a03 I did 3^2=9 = 9x^2

then 8^2=64 so I got 9x^2 + 64

Answer 9

do you understand the FOIL method ?

Answer 10

But I get it now (: thank you guys!!!

Answer 11

I used the formula (a+b)^2=a^2+2a*b+b^2

Answer 12

@kaggler That is not correct.

Remember this identity in your heart: (a+b)^2 = a^2 + 2ab + b^2

Answer 13

9x^2 + 48x +64? @tyteen4a03

Answer 14

@Kaggler Correct.

Answer 15

Thank you!!!!!!!!! @tyteen4a03