Question

(x-4)^2=(*9x*)^2

stars=radical sign

Answer 1

\[(\sqrt{a} )^2=a\]

Answer 2

but both sides got the square

Answer 3

(x-4)^2 foil it

Answer 4

are u sure? what about the other side

Answer 5

are side would be just 9x

Answer 6

ok so the original equation was (x-4)=9x
but the 9x was in a radical sign
does the foil thing apply?