(a² – b²) ÷ (a + b) = _____?
(a² – b²) ÷ (a + b) = _____?
Explanation
Factor the numerator:
(a² - b²) = (a + b)(a - b)
Now, divide by (a + b):
[(a + b)(a - b)] ÷ (a + b)
= (a - b)
Factor the numerator:
(a² - b²) = (a + b)(a - b)
Now, divide by (a + b):
[(a + b)(a - b)] ÷ (a + b)
= (a - b)