Question

If p(x)=3x square-5x+6, find p(-2)

Answer 1

Answer:

=3×-2^2-5×-2+6

=3+4+10+6

p(-2)=23

Answer 2

$\sf \bf p(x) = 3x^{2} -5x+6\\\\\sf\longrightarrow p(-2)=3\times(-2)^{2} -5\times(-2)+6\\\\\sf\longrightarrow p(-2)= 3\times4-(-10)+6\\\\\sf\longrightarrow p(-2)=12+10+6\\\\\sf\longrightarrow\bf p(-2) =28$

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