Question

Tìm x , biết :

\(x^2+25=150-5^2\)

Ai k mk mk k lại

THỀ Lun!!

Answer 1

x²+25=150-25=125

x²=125-25=100

x²=10²

x=10

lk giup anh nha anh lop8

Answer 2

\(x^2+25=150-5^2\Leftrightarrow x^2=125-25\Leftrightarrow x=\sqrt{100}=10\)

\(Vậy x=10\)

Answer 3

Ai k mk mk k lại

Answer 4

\(x^2+25=150-5^2\)

\(\Rightarrow x^2=100\)

\(\Rightarrow\orbr{\begin{cases}x=10\\x=-10\end{cases}}\)

Answer 5

x^2+25=150-5^2

x^2+25=150-25

X^2+25=125

x^2=125-25

x^2=100

Vi 10^2=100

=> x= 10

Vậy x =10

Answer 6

x² + 25 = 150-25

x² + 25 = 125

x²        = 125-25=100

x² = 10²

=> x = 10