Question

X^3+512=0 real or imaginary solution by factoring

Answer 1

\(\bf \Large x^3+512=0\implies x^3=-512\implies x = \sqrt[3]{-512}\)

what do you think?

Answer 2

it's better to use the sum of cubes factoring formula (so you can find the imaginary solutions as well)

Answer 3

hmm ohh yeah

Answer 4

x^3+512 = 0

x^3 + 8^3 = 0

(x+8)(x^2 - x*8 + 8^2) = 0 ... use the sum of cubes factoring formula

(x+8)(x^2 - 8x + 64) = 0


I'll let you finish up