Question

3x^4-75x^2=0

Answer 1

\[\left( x^4-25x^2 \right)=0\]

Answer 2

Where did the 3 go?

Answer 3

\[x^2\left( x^2-25 \right)=0\]

Answer 4

you can take it out as 3 is a common factor

Answer 5

Oh okay I see

Answer 6

okay,so you can get x=0,5 and -5

Answer 7

Because 3 is a common factor?

Answer 8

as 3 is a common factor,you can take it out.
after that, we are getting \[x^2\left( x^2-25 \right)=0\]

Answer 9

so,either x=0 or \[x^2=25\]

Answer 10

Okay Thanks
Im preparing for finals tomorrow morning

Answer 11

okay,best of luck :)