3Square root 7 = square root x?

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Answer and Solution pls!!

2007-12-05 22:32:12 · 5 answers · asked by Xenoraph 2 in Science & Mathematics ➔ Mathematics

3 * √7 = √x
squaring both sides
3² * (√7)² = (√x)²
9 * 7 = x
x = 63

2007-12-05 22:39:38 · answer #1 · answered by A Little Sarcasm Helps 5 · 0⤊ 0⤋

9 x 7 = x
x = 63

2007-12-06 11:35:47 · answer #2 · answered by Como 7 · 0⤊ 0⤋

3*SQRT7 = SQRTx
Square bothe sides

9*7 = x

so 63 = x

2007-12-06 06:38:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋

sqrtx=3sqrt7
squaring both sides
x=9*7=63

2007-12-06 07:06:53 · answer #4 · answered by Bindiya D 2 · 0⤊ 0⤋

3sqrt7=sqrt x

Square both sides

(3sqrt7)^2=(sqrt x)^2

Since 3 and sqrt7 are multiplied together, square both of them.

9*7=x

So x=63.

2007-12-06 06:44:06 · answer #5 · answered by MamaWomack 2 · 0⤊ 0⤋