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Valentin Lucero
Mathematics
2 January, 06:47
X^2 + x^2=6^2 what is x
+2
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2
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Ashly Harmon
2 January, 06:54
0
x=±3sqrt2
Step-by-step explanation:
6^2=36
36=2 (±x^2)
/2 / 2
18=±x^2
sqrt sqrt
sqrt18=x
sqrt18=±3sqrt2
±3sqrt2=x
or
x=±3sqrt2
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Carlee Lawson
2 January, 07:06
0
x = ±3 sqrt (2)
Step-by-step explanation:
x^2 + x^2=6^2
Combine like terms
2x^2 = 6^2
Divide each side by 2
x^2 = * 6^2/2
Take the square root of each side
sqrt (x^2) = ± sqrt (6^2/2)
Remember that sqrt (a/b) = ±sqrt (a) / sqrt (b)
x = ±sqrt (6^2) / sqrt (2)
x = ±6 / sqrt (2)
We do not leave square roots in the denominator, so we multiply the top and bottom by sqrt (2)
x = ±6 / sqrt (2) * sqrt (2) / sqrt (2)
x = ±6 * sqrt (2) / (sqrt (2) * sqrt (2))
x = ±6 sqrt (2) / (2)
x = ±3 sqrt (2)
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