Question

If a+ b =7 & ab=6 find a2-b2

Answer 1

Answer: 35

Step-by-step explanation:

b = 6/a

a + 6/a =7

a2 - 7a +6 = 0

(a-6)(a-1) =0

a=6 and b = 1

a2-b2 = 36-1 = 35

Answer 2

Here the answer I get when I try this question