Question

If a-b=3&ab=4, then find the value of a+b.

Answer 1

Here,

a-b=3

a=3+b

Putting value of equation a in second equation

ab=4

(3+b)b=4

3b+b^2=4

b^2+3b-4=0

Factorising,,,

Answer 2

Answer:

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