Question

solve x^4 - 34x^2 = -225

Answer 1

x^4 - 34x^2 + 225 = 0

Answer 2

Let x^2 be a

a^2 - 34a + 225 = 0

Answer 3

so it is no solution?

Answer 4

no you use quadratic or factoring to solve a^2 - 34a + 225 = 0 first

Answer 5

a = 9
a = 25

x^2 = 9

x = plus/ minus 3

x^2 = 25

x = plus/minus 5