Question

if A+B=40 and B-A= 22.5 THEN FIND VALUE OF A,B​

Answer 1

Answer:

a+2b=9 and ab=7

Find value of a

2

+4b

2

(a+2b)

2

=a

2

+4b

2

+4ab

a

2

+4b

2

=(a+2b)

2

−4ab

=(9)

2

−4(7)

=81−28=53.