Question

find the value of {(5 + 23)(7+43)] = a-6v3​

Answer 1

Answer:

Since,   {(a+b)(a−b)=a2−b2}

            = [(7)2−(43)2](5+23)×(7−43)        

            = 49−163335+143−203−833

            = 49−4835−3(14−8)−24

            = 135−3(6)−24

            =11−63

Hence, by comparing a = 11 & b = -6.

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