7x 3 2x 12 July 8, 2019 16 32 64 128 7x 3 2x 12 180 2x 2 7x 3 12 3 2x 2 7x 12 0 X 3 2x 2 7x 12 2x 3 7x 2 12x 42 0 5 3 2x )-( 12 7x )= 0 2x 3 7x 2 12x 45 Solve 7x 3 2x 12 7x 3 2x 2 42x 12 12 7x 3 2x 15 14 7x 29 21x 3 12 2x 3 2x 5 )- 7x 12 2x 2 7x 3 12 quadratic formula 3 2x 12 4 (- 7x 5 Jika 2x 3 7x 12 berapakah nilai x