a+b=5and a×b=3 find thea^+b^?
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Step-by-step explanation:
(a+b )^2 = a sq. + b sq +2ab
a+b and ab is given
(5)^2= a sq + b sq + 2*3
25= a sq + b sq +6
a sq+ b sq= 25-6
a sq + b sq= 19
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