Question

Simplify.

(3a – 4)^2



A.


9a^2 – 16


B.


9a^2 – 24a + 16


C.


6a^2– 24a + 8


D.


9^2a – 7 + 16

Answer 1

simple... just use the formula.... (a-b)^2=a^2-2(a)(b)+b^2 to solve.....

Answer 2

uhhh i have no idea how to do that

Answer 3

ok see... here at (3a – 4)^2.... we have a=3a and b= -4... now put these in the formula... and solve...

Answer 4

okay hold on ill try

Answer 5

yeah i still dont get it at all :/

Answer 6

hmmm... ok see... this is the formula... (a-b)^2=a^2-2(a)(b)+b^2
(3a – 4)^2 = a=3a and b=4... put in the formula...

(3a – 4)^2 = (3a)^2-2(3a)(4)+(4)^2

(3a – 4)^2 = 9a^2-24a+16... this is the solution... got it now...

Answer 7

i still dont get it but ill try to study the formula until i can solve it on my own i guess