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il63 [147K]
2 years ago
6

NEED HELP PLS I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Lapatulllka [165]2 years ago
4 0

A^2 -b^2 / a +b

Apply the difference of two squares formula to the top :

A^2 - b^2 = (a+b)(a-b)


now you have :

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


the two (a+ b)’s cancel each other out so you are left with a-b = 12


answer: a-b = 12

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