( x + 1 )\(^2\)=100
( x + 1 )\(^2\)= 10\(^2\)
x+1=10
x= 10 -1 =9
\(\left(x+1\right)^2=100\)
\(\left(x+1\right)^2=10^2\)
\(x+1=10\)
\(x=10-1\)
\(x=9\)
( X + 1)2 = 100
( X + 1 )2 = 102
=> X + 1 = 10
X = 10 – 1
X = 9
Vậy ( X + 1)2 = 100 = ( 9 + 1)2 = 100
=> X = 9
\(\text{( x + 1)^2 = 100}\)
\(\left(x+1\right)^2=10^2\)
\(x+1=10\)
\(x=10-1\)
\(\Rightarrow x=9\)
\(\text{dễ mà bạn . đảm bảo đúng , mình học rồi}\)