If P(x)=x3+ax2−5x+2P(x) = x^3 + ax^2 - 5x + 2P(x)=x3+ax2−5x+2 and P(−2)=0P(-2) = 0P(−2)=0, what is the value of aaa?
222
−2-2−2
444
−4-4−4