6
Six equals x is the answer.
x-2+4=-8 x+2=-8 x=-10
8
x = 12
x = 2, y = 84x + 8y= 4(2) + 8(8)= 8 + 64= 72
The quadratic expression x2+6x+8 when factorised equals (x+2)(x+4)
If2 + 8 = 8 + xx = 2
x=1.6225
(3, 2)
-2
2 squared plus 2 x 3 = 10, 7 squared plus 7 x 2 = 63, 6 squared plus 6 x 5 = 66,8 squared plus 8 x 4 = 96 so 9 squared plus 9 x 7 = 81 + 63 = 144.
x= -5