x2 + x2 = 2x2 2x^2
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
x+x=2x
2x2 + (5x-4x)2 + (x-x)2 = 2x2 + x2 + 02 = 2x2 + x2 = 3x2
x2 - 2x = x(x-2) and that cannot be simplified further.
x2 + x2 = 2x2 2x^2
-x2+2x
Factor it out: (x+2) squared
2x2 + 2x - 8 = 2(x2 + x - 4). This can take any value greater than or equal to -8.5
x+x=2x
2x2 + (5x-4x)2 + (x-x)2 = 2x2 + x2 + 02 = 2x2 + x2 = 3x2
x2 - 2x = x(x-2) and that cannot be simplified further.
17
x2
If: x2+2x-3 = 0 Then: x = 1 or x = -3
x2+2x-120 = (x+12)(x-10) when factored
x2 - (2x)2 = x2 - 4x2 = -3x2 x2 - 2x2 = -x2