X to the power of 2 plus 3x July 8, 2019 16 32 64 128 X to the power of 2 plus x to the power of 2 X to the power of 2 plus y to the power of 2 X to the power of 3 plus x to the power of 3 2 x 3 to the power of 2 X to the power of 3/2