Question

MA
Pium)
if a + b = 9 and ab
– 22, find (i) a – b (ii) a²--b²​

Answer 1

Answer:

what what ?????????what what

Answer 2

Step-by-step explanation:

a+b=9

ab=22

(a+b)²

a²+b²+2ab

(a+b)(a-b) +2ab=0

9(a-b) +44=0

9a-9b=-44

9a+9b=81

a= 43

43+b=9

b=-34

1. a-b=43-(-34)=77
2. a²-b²=(a+b)(a-b) =(43-34)(43+34)

= 9(77)

696