Question

complete the equation. 3x^2 (9x)^0 = ___ x _____​

Answer 1

Answer:

x = –3 and x =0

Step-by-step explanation:

Now this one is quite nice as we can just remove a common factor from both of them... they are both divisible by

−

x

:

−

x

(

3

x

+

9

)

=

0

Now we need to make this equation

0

, therefore

−

x

or

3

x

+

9

must equal

0

as any number multiplied by

0

=

0

...

So we know one solution for

x

must therefore be

0

(as

−

(

0

)

⋅

x

=

0

,

x

being any number)

we also know that

3

x

+

9

=

0

, so we can solve this:

3

x

+

9

=

0

→

subtract 9

3

x

=

−

9

→

divide by 3

x

=

−

3

So the two solutions for

x

are

0

and

−

3