How do you factor #y=x^3 + 1000 #?
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1 Answer
Feb 1, 2016
# ( x + 10 )( x^2- 10x + 100 )#
Explanation:
This is a sum of cubes and is factorised as follows :
# a^3 + b^3 = (a + b )( a^2 - ab + b^2 ) # in this question a = x and b = 10
# rArr x^3 + 1000 = (x + 10 )(x^2 - 10x + 100 )#
