simple.
Just 137
0
x2 + x2 = 2x2 2x^2
x - 0.4x = 0.6x
Only if x is equal to 2.
x2 + x2 = 48 2x2 = 48 x2 = 24 x = √24 x = 2√6
x = x, y=y, x2=x2
x2, or "x squared"
x+x=2x
(12x6)x2 = 12x8
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)
x2-5x = 0 x(x-5) = 0 x = 0 or x = 5
x2+xx = 15 Which is the same as: x2+x2 =15 2x2 = 15 x2 = 7.5 x = the square root of 7.5