Question

I found out that I have to answer for x so the equation is (x-8)(3x+4)=0

Answer 1

This equation is of the form a*b = 0. This can be split up as a = 0 or b = 0,

So: solve for x:

x-8=0 or 3x+4=0

Answer 2

Okay so then how would I do it?

Answer 3

What is the solution of x-8=0?

Answer 4

-8, right

Answer 5

No... You add 8 to both sides of the equation to get
x = 8.
So 8 is a solution. Now do
3x + 4 = 0

Answer 6

OK, now the solution of 3x+4 = 0

Answer 7

8-3x?

Answer 8

No, if 3x+4=0, you can see that 3x=-4. Why? Because -4+4=0.
So the last step is to find the solution of 3x=-4.

Answer 9

Oh yeah duh, so then it would \[-\frac{ 3 }{ 4}\]

Answer 10

...I would say it's -4/3

Answer 11

oh, I always get them backwards. thank you

Answer 12

YW!