Question

Solve:
3x(x + 4) + 3(x + 4) = 0
A)
0 and -4
B)
-1 and 4
C)
-1 and -4
D)
1 and 4

Answer 1

u can use distibutive property :
3x(x + 4) + 3(x + 4) = 0
(3x+3)(x+4)=0
solve for x

Answer 2

B rite

Answer 3

I don't agree with B as the answer.

Answer 4

umm ok..when i put in the answers 3 times -1+3 times -4+4=0 that would make my answer cc

Answer 5

You could see right away that -4 is a solution, because both terms are 0 with x = -4.
Now if x is not equal to -4, you could divide everything by x-4, yielding:

3x+3=0, so 3x = -3 and x = -1.

Solutions: -1 and -4. (C)

Answer 6

thankzz @ZeHanz