Question

If a-b=5,a2+b2=49.Find the value of ab​

Answer 1

Answer:

a-b=5

a=5+b

hence , 2a+2b = 49

  2(5+b) +2b = 49

10+2b+2b=49

4b=39

b=39/4

therefore, a = 5+ 39/4

So, ab = (5+39/4) x 39/4

          = 14.75 x 9.75

          = 143.8125

Answer 2

Answer:

Step-by-step explanation: