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rjkz [21]
3 years ago
13

What number should be added to both sides of the equation to complete the square? x2 8x = 4

Mathematics
2 answers:
olga55 [171]3 years ago
7 0

Answer:

c

Step-by-step explanation:

Levart [38]3 years ago
6 0
You would take half of the x term...and square it
so half of 8 is 4....4^2 = 16
u would add 16 to each side
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\dfrac{7}{16} \ as \ a \ decimal = 0.4375


Set \ up \ the \ long \ division. 


Calculate \ 70 \div 16, \ which \ is \ 4  \ with \ a \ remainder \ of \ 6.&#10;&#10;


Bring \ down \ 0, so \ that \ 60 \ is \ large \ enough \ to \ be  \ divided \ by \ 16.&#10;&#10;


Calculate \ 60 \div 16, which \ is \ 3 \ with \ a  \ remainder \ of \ 12.&#10;&#10;


Bring \ down \ 0, so \ that \ 120 \ is \ large \ enough \ to \ be \ divided \ by \ 16.&#10;&#10;


Calculate \ 120 \div 16, which \ is \ 7 \ with \ a \ remainder \ of \ 8.&#10;&#10;


Bring \ down \ 0, so \ that \ 80 \ is \ large \ enough \ to \ be \ divided \ by \ 16.



Calculate \ 80 \div 16, which \ is \ 5. &#10;
<span>
</span>

Decimal = 0.4375&#10;

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aleksandr82 [10.1K]
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