Question

If a - b = 5, a^2+b^2= 49, find the value of ab.​

Answer 1

Answer:

Given,

a-b = 5

squaring both sides:

(a-b)² = 5²

a²+b²-2ab = 25

49-2ab = 25 [Given in ques, a²+b² = 49]

2ab = 24

ab = 12

I hope this helps.