Question

answer these one 9 no​

Answer 1

a-b=4

a=4+b

a+b=6

(4+b)+b=6

2b=2

b=1

now a=4+b

a=4+1=5

a2+b2=5^2+1^2=25+1=26

ab=5*1=5.

MARK BRAINLIEST.

Answer 2

(a+b)2=a2+b2+2ab
36=a2+b2+2ab.....1
similarly,
16=a2+b2-2ab....2
by adding 1&2 ,and we get
2(a2+b2)=52
a2+b2=26
by subtracting 1&2,and we get
4ab=20
ab=5…..................