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what multiplies to get -143 and adds up to -2?

Guest Feb 24, 2015

Best Answer 

 #2
avatar+91465 
+5

How did CPhill work this out?

 

what multiplies to get -143 and adds up to -2?

They mult to a negative so one is negative and one is positive

If they add up to -2 the numbers must be close together and the 'bigger' one is negative

sqrt(143)=almost 12

143/11=13

so the numbers are -13 and +11

Melody  Feb 24, 2015
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2+0 Answers

 #1
avatar+81029 
+5

-13 and 11

 

CPhill  Feb 24, 2015
 #2
avatar+91465 
+5
Best Answer

How did CPhill work this out?

 

what multiplies to get -143 and adds up to -2?

They mult to a negative so one is negative and one is positive

If they add up to -2 the numbers must be close together and the 'bigger' one is negative

sqrt(143)=almost 12

143/11=13

so the numbers are -13 and +11

Melody  Feb 24, 2015

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