Question

Find the value of 'P', if the polynomial $p\left(x\right)=x^4-{2x}^3+{3x}^2-px+3p-7$ and $p\left(2\right)=5$

Answer 1

$p\left(x\right)=x^4-2x^3+3x^2-px+3p-7p\left(2\right)=2^4-2(2{)}^3+3(2{)}^2-2p+3p-7=5p+5=5p=0$