Question

Find the value of each polynomial at the indicated value of variables :

1) p(x) = 5x² – 3x + 7
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Answer 1

→ p(x) = 5x² - 3x + 7

• Put x = 1

→ p(1) = 5(1)² - 3(1) + 7

→ p(1) = 5 - 3 + 7

→ p(1) = 9

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Answer 2

Given p(x)=5x

2

−3x+7

At x=1

p(1)=5(1)

2

−3(1)+7

      =5−3+7

      =9