Question

If a - b = 5, a + b = 49, find the value of ab.
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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

given = a-b=5 .... (1)

and, a+b = 49 .... (2)

find , ab

so, add both equations

= a+b + a- b= 49 + 5

= 2a = 54

= a = 54/2 = 27

now in equation 1

= a - b = 5

= 27 - b = 5

= 27 - 5 = b

= b = 22

now, ab = 27×22

ab = 594

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