Question

simplify a^2-ab/a^2+ab

Answer 1

(a - b)² = a² -2ab + b²

(a + b)² = a² + 2ab + b²

So to get from (a - b)² to (a + b)² you have to add 4ab so:

(a - b)² + 4ab = (a + b)²

Or: (a - b)² = (a + b)² - 4ab

Answer 2

i was so gonna say that ^^