Question

if p(×)=5ײ-3×+7,then p(1) equals
a)-10
b)9
c)-9
d)10​

Answer 1

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p(x)=5x²-3x+7

p(1)=5(1²)-3(1)+7

p(1)=5-3+7

p(1)=9(b)

Answer 2

Given Quadratic equation ;

p(x) = 5x^2 -3x +7

and also given that p =1

By substituting we get

p(1) =5(1)^2 - 3(1) +7

=(5×1) - 3+7

=5-3+7

=9

So,p(1) =(b) = 9

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