Solve (x-1+x)*(x-1)/2

$$\frac { ( x - 1 + x ) \times ( x - 1 ) } { 2 }$$

Evaluate

$$x^{2}-\frac{3x}{2}+\frac{1}{2}$$

Solution Steps

Combine x and x to get 2x.

$$\frac{\left(2x-1\right)\left(x-1\right)}{2}$$

Apply the distributive property by multiplying each term of 2x-1 by each term of x-1.

$$\frac{2x^{2}-2x-x+1}{2}$$

Combine -2x and -x to get -3x.

$$\frac{2x^{2}-3x+1}{2}$$

Expand

$$x^{2}-\frac{3x}{2}+\frac{1}{2}$$

Solution Steps

Combine x and x to get 2x.

$$\frac{\left(2x-1\right)\left(x-1\right)}{2}$$

Apply the distributive property by multiplying each term of 2x-1 by each term of x-1.

$$\frac{2x^{2}-2x-x+1}{2}$$

Combine -2x and -x to get -3x.

$$\frac{2x^{2}-3x+1}{2}$$