X to the second-8x+7=0
2 answers:
If your'e looking to complete the square, then here's how you do it:
1.) Subtract 7 from each side:
2.) Take half of the value of B, which is 4, then square it to get C
3.) Now you should have
, because what you do to one side you have to do to the other
4.) Take the value of
and 4, and plug them into an ordered pair: 
Now take the square root of both sides which is equal to
±
5.) Now subtract 4 from each side to isolate x:
<span>±3
6.) Solve: </span>
& 
Final Answer:
& 
Hope this helps!!
1.) Subtract 7 from each side:
2.) Take half of the value of B, which is 4, then square it to get C
3.) Now you should have
4.) Take the value of
Now take the square root of both sides which is equal to
5.) Now subtract 4 from each side to isolate x:
6.) Solve: </span>
Final Answer:
Hope this helps!!
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Using the geometric mean concept, it is found that the value of a is 18.
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The geometric mean, of a data-set of n elements, , is given by:
That is, the nth root of the multiplication of all elements.
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In this question:
- Two elements(n = 2), a and 34.
Thus:
We find the square of each side, so:
Simplifying both sides by 17:
The value of a is 18.
A similar example is given at brainly.com/question/15010240