Question

if a+b=6 and ab=8 find a-b​

Answer 1

Answer:

a+b=6

(a+b)²=36

a²+b²+2ab=36

a²+b²+16=36

a²+b²=20

(a-b)²=a²+b²-2ab

=20-16

=4

so,a-b=2

Answer 2

Answer:

2

Step-by-step explanation:

a+b=4+2=6

a×b=4×2=8

a-b=4-2=2