Factorise:2y³+y²-2y-1
Answers
Answered by
0
Answer:
y^2(2y+1) +1( 2y+1)
(2y+1)(y^2+1)
Answered by
0
Step-by-step explanation:
2y³+2y²-y²-y-y-1
2y²(y+1) - y(y+1) - 1(y+1)
(y+1)(2y²- y - 1)
(y+1)(2y²- 2y+y - 1)
(y+1)[2y(y-1) +1(y-1)]
(y+1)(2y+1)(y-1)
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