X 4 x 3 3x 2 8x 20 0 July 8, 2019 16 32 64 128 (x + 3) ^ 4 + 2 * (x + 3) ^ 2 - 8 = 0 X 3 + 4 x 2 − 2 x − 8 = 0 −x = 4 − 3(3x − 8)
