Question

HELP: Solve by Factoring.
9x^2+4x=0

Answer 1

9x^2+4x=0
x(9x+4)=0
either
x=0
or, 9x+4=0

Answer 2

would it be (3x+2)(3x-2) do that is 6x-6x=0?

Answer 3

I'm not sure your answer is correct

Answer 4

we can not factorize it like this because
a^2-b^2=(a+b)(a-b)

Answer 5

if the question is like
9x^2-4
then we do this

Answer 6

but we would multiply the inner product and then the outer product and then add together. In my example ... I know that is one of the ways on my homework. I was just unsure.

Answer 7

in the question we see that there is "x" common so, we first take out "x"
9x^2+4x = x(9x+4)

Answer 8

so, the factorize form of 9x^2+4x is x(9x+4)

Answer 9

yes that's right sorry read it wrong

Answer 10

:)

Answer 11

now either x=0 or , 9x+4=0
so, x=0 is one of the answer
and we solve 9x+4 =0 for other answer

Answer 12

the only common factor is x

so you have x(9x + 4) = 0

then x = 0 or -4/9 as the solutions to the equations