13. Factorize the following
expressions using a?. b3 = (a -
b)(a² + ab + b2) identify:
(iii) -16y3 + 2x3q
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a?b3= a(a2+ab+b2)-b(a2+ab+b2)
a?b3= a3+a2b+ab2-a2b-ab2+b3
a?b3= a3+b3 (others all have been cutted)
So the answer is 3
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