x^2=7 x=?

Question

+5

572

4

Guest Dec 9, 2015

+118608

+5

Best Answer

x^2=7

\(x^2=7\\~\\ x=\pm\sqrt7\)

Melody Dec 10, 2015

Melody · Answer 1 · 2015-12-10T01:21:27

x^2=7

\(x^2=7\\~\\ x=\pm\sqrt7\)

Guest · Answer 2 · 2015-12-09T07:23:48

Just take the square root of 7.

Anima · Answer 3 · 2015-12-09T07:24:16

X^2=7

x^2=x*x

x*x=2x

2x=7

2x/2=7/2

x=3.5

Guest · Answer 4 · 2015-12-09T07:36:30

Anima: NO!. The aquare root of 7=2.64575..............etc.

Just check it!: 3.5^2=12.25 2.64575^2=7