Solve (a +b )^2-(a-b)^2

Evaluate

(a + b)^{2} - (a - b)^{2}

Expand the expression

a^{2} + 2 ab + b^{2} - (a - b)^{2}

Expand the expression

a^{2} + 2 ab + b^{2} - a^{2} + 2 ab - b^{2}

The sum of two opposites equals 0

More Steps

0 + 2 ab + b^{2} + 2 ab - b^{2}

Remove 0

2 ab + b^{2} + 2 ab - b^{2}

Add the terms

More Steps

4 ab + b^{2} - b^{2}

The sum of two opposites equals 0

More Steps

4 ab + 0

Solution

4 ab

Simplify the expression