If a+b=7 and ab=10, find the value of (a-b)
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Answered by
2
let a and b be x
x+x=10
2x=10
x=10/2
x=5
x+x=10
2x=10
x=10/2
x=5
Ahad23:
you are nonsense
tera baap
bakwas aadmi
a and b are different u cannot take them as x
tera baap
teri maaa bakeas
bakwas
teri ma ka
sakinaka
tere baap ka maderchod, bhencod
Answered by
3
(a+b)2 =49
a2 + b2 +2ab=49
a2 + b2= 49-20
a2 + b2=29
(a-b)2=a2 + b2 + 2ab
(a-b)2=29 +20
(a-b)2=49
(a-b)=√49=7
a2 + b2 +2ab=49
a2 + b2= 49-20
a2 + b2=29
(a-b)2=a2 + b2 + 2ab
(a-b)2=29 +20
(a-b)2=49
(a-b)=√49=7
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