2 4x 2 )= 8x 4 July 8, 2019 16 32 64 128 4x 2 y 2 8x 4y 4x 2 8x 4 0 8x 2 3 4x 2 8x 4 4x 2 8x 4 0 discriminant 4x 2 8x 4 2 1 x )( 1 x 4x 2 28x 40 4x 2 28x 49 4x 2 28x 49 64 4x 2 8x 4x 2 X 3 x 2 4x 2 8x 4 X 3 x 2 )- 4x 2 8x 4 0 4x 2 y 2 8x 4y factorise 4x 2 8x 4 factorise 2 2 8x 4x 4 5x 4x 2 8x 4 1
