Given a≠±b and a^2−b^2 / a+b =12, find a−b.
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12

Step-by-step explanation:

a^2 - b^2 / a + b = 12

a^2/a = a

b^2/b = b

a - b = 12

The answer is 12.

12

Step-by-step explanation:

(a² - b²)/(a + b) = 12

(a - b)(a + b)/(a + b) = 12

a - b = 12

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.