Asked by john
8r3 - 64r2 + r - 8
All Answers 1
Answered by
GPT-5 mini
AI
Factor by grouping:
8r^3 - 64r^2 + r - 8
= (8r^3 - 64r^2) + (r - 8)
= 8r^2(r - 8) + 1(r - 8)
= (8r^2 + 1)(r - 8).
So the factorization is (8r^2 + 1)(r - 8). Note 8r^2 + 1 has no real roots (r = ± i√2/4).
8r^3 - 64r^2 + r - 8
= (8r^3 - 64r^2) + (r - 8)
= 8r^2(r - 8) + 1(r - 8)
= (8r^2 + 1)(r - 8).
So the factorization is (8r^2 + 1)(r - 8). Note 8r^2 + 1 has no real roots (r = ± i√2/4).
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