Verify whether y=1,-1are zeroes of polynomials (y+1)(y-2)
Answers
Answered by
0
Answer:
no,y=1,-1 are not zeroes.
Step-by-step explanation:
(y+1)(y-2)
y^2-2y+1y-2
y^2-1y-2
y^2-2y+1y-2
y(y-2)+1(y-2)
y-2=0,y+1=0
y=2,-1
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Answered by
0
Answer:
(-1) is a zero, but 1 is not.
Step-by-step explanation:
(y + 1)( y - 2)
= y^2 - y - 2
f(1) = 1 - 1 - 2 = -2
f(-1) = 1 + 1 - 2 = 0
Therefore, (-1) is a zero, but 1 is not a zero.
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