Question

If a - b = 3 and a2 + b2 = 29, find the value of ab.

a. 10

b. 12

c. 15

d. 18

Answer 1

a. 10......is the answer

Answer 2

Answer:

ab=10

Step-by-step explanation:

a-b=3

(a-b)^2=3*3

a^2+b^2-2ab=9

29-2ab=9

29-9=2ab

20=2ab

ab=20/2=10