Question

If A square + b square = 74 and ab = 35 then find a+b

Answer 1

(a+b)²=a²+b²+2ab
= 74+2*35 =74+70= 144
(a+b)²=144
(a+b)= 12

Answer 2

Answer:

Step-by-step explanation:

(a+b)sq.= a sq. + b sq. +2ab

              =74+ 2(35)

              =74+70

              = 144

a+b=12

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