Question

if a+b =3 and ab=2 find the value of, a^2-b^2​

Answer 1

Answer:

2nd option = a - b

Step-by-step explanation:

In first case ..it is adding ( a+ b)

In second case..its combining ab

And in third case ...it's going be subtracted ( a - b)

Answer 2

Answer:

(i) 5

(ii) 1

(iii) 3

Step-by-step explanation:

i) (a+b)²-2ab

ii) (a-b)²= a²+b²-2ab

iii) (a-b)(a+b)