Question

(a/b)⁶×(ab)⁷
ليله xفلم
ما​

Answer 1

Answer:

+35

Step-by-step explanation:

Given, a+b=7 and ab=6

Now,

(a+b)

2

=a

2

+b

2

+2ab

=>7

2

=a

2

+b

2

+2(6)

=>49=a

2

+b

2

+12

=>a

2

+b

2

=37

Now,

(a−b)

2

=a

2

+b

2

−2ab

=37−2(6)

=25

=>(a−b)=

25

=>(a−b)=±5

Now,

a

2

−b

2

=(a+b)(a−b)

=7(±5)

=±35