factor out the sum of two cubes x^3+27?
回答 (5)
2009-09-05 3:20 pm
✔ 最佳答案
x^3+27=(x+3)(x-3x+9) answer//
2009-09-05 4:29 pm
a^3 + b^3 ≡ (a + b)(a^2 - ab + b^2)
x^3 + 27
= x^3 + 3^3
= (x + 3)(x^2 - 3x + 9)
x^3 + 27
= x^3 + 3^3
= (x + 3)(x^2 - 3x + 9)
2009-09-05 2:58 pm
=(x+3)(x^2 -3x +9)
God bless you.
God bless you.
2009-09-05 2:58 pm
x^3+27
= (x + 3)(x^2 -3x +9) (Answer)
= (x + 3)(x^2 -3x +9) (Answer)
2009-09-05 2:54 pm
(x+3) (x^2 - 3x + 9)
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