Factoring Trinomials?

125k^3+27=

Factor this as far as possible
Answer = (15k+13)(25k^2-15k+9)

Please post step by step, I need help.

2007-09-13 07:29:18 · 1 answers · asked by Parth G 1 in Science & Mathematics ➔ Mathematics

a^3+b^3 = (a + b)(a² - ab + b²)

then

125k^3 + 27 = (5k)^3 + (3)^3
= (5k+3)(25k² - 15k + 9)

2007-09-13 07:47:17 · answer #1 · answered by Nestor 5 · 0⤊ 0⤋

fedest.com, questions and answers