Question

If a^2 + b^2 = 29, ab = 2 then find the value of a-b .

Answer 1

Answer:

(a-b)^2=a^2+b^2-2ab

=29-2*2

=29-4=25=(a-b)^2

therfore, a-b=square root of 25=5

So answer is 5

Answer 2

Answer:

(a-b)^2 = a^2 - 2 ab + b^2

a-b = root 29 - 2 (2)

a-b = root 25

a- b=5

hope this help you