Asked by Aster Calico
How is (x^2+2x+4) derived from (x^3-8)? What do you call it's formula and what are the steps required to turn (x^3-8) into (x^2+2x+4)?
Answers
Answered by
Steve
check your text. The way to factor the difference of two cubes is
(a^3 - b^3) = (a-b)(a^2+ab+b^2)
Here, you have
a=x
b=2
Simple as that.
(a^3 - b^3) = (a-b)(a^2+ab+b^2)
Here, you have
a=x
b=2
Simple as that.
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