Question

if p (y equals to 2 y cube minus 6 x square minus 5 Y + 7 then find p (2)
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Answer 1

p(y) = 2y3 – 6y2 – 5y + 7

Put y = 2 in the given polynomial.

∴ p(2) = 2(2)3 – 6(2)2 – 5(2) + 7

= 2 x 8 – 6 x 4 – 10 + 7

= 16 – 24 – 10 + 7

∴ P(2) = -11

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