(b - 1) (b^3 – 2b^2 + 3b – 4) – (2b – 3)
Answers
Answered by
8
Step-by-step explanation:
(b-1)(b^3-2b^2+3b-4)-(2b-3)
b^4-2b^3+3b^2-4b-b^3+2b^2-3b+4-2b+3
b^4-3b^3+5b^2-9b+7
Answered by
2
Answer:
b^4-3b^3+5b^2-9b+7
Step-by-step explanation:
=(b-1)(b^3-2b^2+3b -4)-(2b-3)
=b^4-2b^3+3b^2-4b-b^3 +2b^2-3b+4-2b+3
=b^4-3b^3+5b^2-9b+7
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