factorise x^6 +63x^3-64
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Answered by
13
Answer:
Step-by-step explanation:x^6 + 63x^3 - 64 = 0? Factor it
(x-1)(x+4)(x^2+x+1)(x^2-4x+16)
x-1 = 0
x = 1
x+ 4 = 0
x = -4
Use the Quadratic Formula to slove
x^2+x+1 = 0 False no sloution
x^2-4x+16 = 0 False no sloution
x = 1 or x =-4 are the solutions of the equation x^6 + 63x^3 - 64 = 0
sarah3231:
it is wrong
Answered by
54
Answer:
x^6+63x^3-64
x^6-x^3+64x^3-64
x^3(x^3-1)+64(x^3-1)
(x^3-1)(x^3+64)
{(x)^3-1)}{(x)^3+(4)^3}
(x-1)(x^2+x+1)(x+4)(x^2-4x+16)
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