If p(y) = 2y2 – 6y2 – 5y +7 then find p(2).
Put x = 2 throughout the polynomial
= 2 × (2)2 – 6 × (2)2 – 5 × 2 + 7
= 8 – 24 – 10 + 7
= -19
∴ p(2) = -19
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