2. If (a - b) = 5 and ab = 14 ; find the value of a^2 + b^2.
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Step-by-step explanation:
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Answered by
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Step-by-step explanation:
(a-b) =5
a-b =5
a=5+b....1
ab = 14.....2
Using equation 1 in equation 2
ab = 14
(5+b) b = 14
From equation 1
a=5+b
a = 5 + (-7) or a = 5+2
a = -2. or a= 7
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