If a-b=7and ab =10find a+b
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Step-by-step explanation:
ab= 10
a= 10/ b
a-b = 7
10/b - b = 7
take lcm,
10 - b^2 / b = 7
10 - b^2 = 7b
0= b^2+7b-10
solve the quadratic equation and you will get the answer.
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