Given P(x)=ax3+bx+cP(x) = ax^3 + bx + cP(x)=ax3+bx+c, if P(1)=2P(1) = 2P(1)=2 and P(−1)=4P(-1) = 4P(−1)=4, what is the value of bbb?
b=−1b = -1b=−1
b=0b = 0b=0
b=1b = 1b=1
b=3b = 3b=3