Question

Sea P(x)=x3+4ax2-2x+3.Calcula el valor de a para que P(1)=10

Answer 1

P(1)=1^3+4a1^2-2•1+3=10
1+4a-2+3=10
4a=10-1+2-3
4a=9+2-3
4a=11-3
4a=8
A=8/4
A=2