Question

Given a-b =1 , ab =12 find ( a2 b2)

Answer 1

Answer:

$(a - b) = 1 \\ \\ ab = 12 \\ \\ \\ (a + b)^{2} - 2ab = 1 \\ \\ = > (a + b) = 1 + 24 \\ \\ \\ = > {a }^{2} + {b}^{2} + 2ab = 25 \\ \\ \\ = > {a}^{2} + {b}^{2} = 25 - 24 \\ \\ = > {a}^{2} + {b}^{2} = 1$

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