16 8y y 2 July 8, 2019 16 32 64 128 X 2 8x 8y 16 y 2 Y 2 8y 16 0 Y 2 8y 16 factored Y 2 8y 16 64 Y 2 8y 16 factor Y 2 8y 16 factorise 16 y mũ 2 8y 1 16 - y = 8 16 y 4-8y2+1=0