2 answers:
Answer:
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)
Answer:
x=±3sqrt2
Step-by-step explanation:
<em>6^2=36</em>
36=2(±x^2)
<em>/2 /2</em>
18=±x^2
<em>sqrt sqrt</em>
sqrt18=x
sqrt18=±3sqrt2
±3sqrt2=x
or
x=±3sqrt2
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Answer:
1. 4 * 7 * 11 = 308
2. 7 * 7 * 4/2 = 98
3. 98 + 308 = 406
Hope this helps!
The correct answer would be (4,-5)
Answer:
Complex number.
Step-by-step explanation:
Answer:

Step-by-step explanation:
The perimeter is two times width plus two times length:

There is no way to simplify further.