X 4 4x 3 7x 2 6x 4 y 2 July 8, 2019 16 32 64 128 6) - 7(- 4x + 3) + 2(3x - 7) = b) 4 5(- 8y - 7) - 3 9(6 - 9y) = (6x - 7) ^ 4 + 4 * (6x - 7) ^ 2 + 3 = 0 ( 4 y − 7 x ) ⋅ ( 7 x + 4 y )
