FACTOR this please..?

0 ⤊

FACTOR this please..?

x^3-125

2007-12-03 08:01:04 · 2 answers · asked by Megan Thrift 1 in Science & Mathematics ➔ Mathematics

2 answers

Difference of cubes rule:
a^3 - b^3 = (a – b)(a² + ab + b²)

In your case a = x, b = 5

= (x - 5)(x² + 5x + 25)

You can use the quadratic formula to factor the second part, but it will result in imaginary numbers.

2007-12-03 08:06:27 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋

x^3-125

(x-5)(x^2+5x+25)

2007-12-03 08:56:38 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋