Question

5. If p(x) = x2 – 4x + 3, evaluate: p(2) – p(-1) + p(1)​

Answer 1

P(x) =x^2-4x+3

P(2)=(2)^2-4(2)+3

P(2)=(4)-4(2)+3

P(2)=4-8+3

P(2)=-1

P(-1)=(-1)^2-4(-1)+3

P(-1)=1+4+3

P(-1)=8

P(1)=(1)^2-4(1)+3

P(1)=1-4+3

P(1)=0

P(2)-P(-1)+p(1)

=-1-8+1

=-6

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