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Y1vi5
@Y1vi5
October 2021
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allangarsk
(a – b + 4ab/ a – b) = (a-b)^2 +4ab /a-b = a^2 – 2ab + b^2 + 4ab /a – b =
(a + b)^2/a-b
4a^2 /(a + b)^2 – 2a/ a+ b = 4a^2 - 2a( a+ b )/(a + b)^2 = 4a^2 - 2a^2 - 2ab /(a + b)^2= 2a^2 - 2ab /(a + b)^2
((a + b)^2/a-b) * (2a^2 - 2ab /(a + b)^2) = ((a + b)^2 * (2a^2 - 2ab)/(a-b) * (a + b)^2 = (2a^2 - 2ab)/(a-b) = 2a (a - b)/(a-b) = 2a
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Answers & Comments
(a + b)^2/a-b
4a^2 /(a + b)^2 – 2a/ a+ b = 4a^2 - 2a( a+ b )/(a + b)^2 = 4a^2 - 2a^2 - 2ab /(a + b)^2= 2a^2 - 2ab /(a + b)^2
((a + b)^2/a-b) * (2a^2 - 2ab /(a + b)^2) = ((a + b)^2 * (2a^2 - 2ab)/(a-b) * (a + b)^2 = (2a^2 - 2ab)/(a-b) = 2a (a - b)/(a-b) = 2a