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OpenStudy (anonymous):
WILL GIVE MEDAL AND FAN! Algebra Find the number that should be added to the expression to make it a perfect square
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OpenStudy (anonymous):
@jim_thompson5910 |dw:1367535200507:dw|
OpenStudy (anonymous):
so u know that (x+y)^2 = x^2+2xy+y^2 ?
jimthompson5910 (jim_thompson5910):
take half of the x coefficient then square that result to get your answer
OpenStudy (anonymous):
so half means divide by 2? @jim_thompson5910
jimthompson5910 (jim_thompson5910):
yes to cut something in half means to divide by 2 eg 1/2 of 10 = 10 divided by 2 = 5
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OpenStudy (anonymous):
okay so half of 2 is one?
jimthompson5910 (jim_thompson5910):
the x coefficient is -6, not 2
jimthompson5910 (jim_thompson5910):
|dw:1367535755416:dw|
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