yes they are because 4x is the same as x multiplied by 4 which is not the same as x-2
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4x-x2 = 2
6
X2 + 4xx(x + 4)=======
Linear equations can be written as y = mx + b. Any other function would be non-linear. Some linear equations are: y = 3x y = 2 y = -2x + 4 y = 3/4x - 0.3 Some non-linear functions are: f(x) = x2 y = sqrt(x) f(x) = x3 + x2 - 2
x2 + x + 6