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The value of the polynomial 5x – 4x2 + 3 when x = – 1 is
(A) –6
(B) 6
(C) 2
(D) –2
Answers (1)
[A]
Solution: Here the given polynomial is p(x) = 5x – 4x2 + 3
Then putting x = – 1 in the above equation we get
p(-1) = 5(–1) – 4(–1)2 + 3
= – 5 – 4(–1)2 + 3
= – 5 – 4 + 3
= – 9 + 3
= – 6
Hence the answer is -6
View full answer
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