Question

3.If a + b = 7 and ab = 10; find a - b.

Answer 1

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Answer 2

Answer:

answer is 3 because:-

If ab =10 then we can say that a = 5 and b = 2 {by breaking 10 ( 5*2) } and also if u add 5 and 2 then u get 7 according to the problem .

Now if we subtract then 5-2=3

hope my explanation helps you.

Step-by-step explanation: