Question

Find the zeros of the function by factoring. f(x)=9x^4-25x^2

Answer 1

\[(3x^2)^2-(5x)^2\]
\[(3x^2+5x)(3x^2-5x)\]
since \[a^2-b^2 = (a+b)(a-b)\]

Answer 2

got it phuelnora

Answer 3

uhh not reallly

Answer 4

what are the zeros?

Answer 5

ok now see here : \[3x^2+5x=0\]
\[x(3x+5)=0\]
\[x=o , x=-5/3\]
\[3x^2-5x=0\]
\[x(3x-5)=0\]
\[x=0 , x=5/3\]
zeros are 0 , 5/3 and -5/3

Answer 6

now got it

Answer 7

thank you