Question

find solution set may use factoring
5x^4=5,000x

Answer 1

divide both side by x and see what you get. ok?

Answer 2

divide both sides by 5 first...

Answer 3

you'll get x^4 = 1000.
now use the formula (a^2 - b^2) = (a+b)(a-b)

Answer 4

still need help?

Answer 5

x^4 - 1000
(x^2 - 10sqrt10)(x^2 + 10sqrt10)

(x^2 - 10sqrt10) can also be factored...