Question

\(\sqrt{X}-1=10\)

Answer 1

\(\sqrt{x}+1=10\)

\(\sqrt{x}=10-1\)

\(\sqrt{x=9}\)

\(->x=9^2\)

\(x=81\)

Chúc bn học tốt!!!!!Đúng nhớ tick nha!!!!

Answer 2

Bn ơi ,mk chép sai đầu bài ,mk sẽ làm lại:

\(\sqrt{x}-1=10\)

\(\sqrt{x}=10+1\)

\(\sqrt{x}=11\)

\(->x=11^2\)

\(=>x=121\)

(Thông cảm nha bn!!!)

Answer 3

$\sqrt{X}-1=10$

$\mathrm{=>\; \backslash (\backslash sqrt\{X\}=10+1\backslash )}$

$\mathrm{=>\; \backslash (\backslash sqrt\{X\}=11\backslash )}$

$\mathrm{=>\; \backslash (X=11^2=121\backslash )}$

Answer 4

\(\sqrt{x}-1=10\left(=\right)\sqrt{x}=9=>x=9^2\left(=\right)x=81\)