Question

check my answer!--->

Answer 1

\[x^2(625-40x-x^2)=(x-20)^2(36+x^2)\]

Answer 2

my answer is x=-40/3

Answer 3

@Agl202 @AloneS do you know if it is right?

Answer 4

so than you prove substituting -40/3 in place of x will get zero - than not so this mean that not is right

Answer 5

oops yes that was y I was checking. I will redo my work.