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Algebra 13 Online
OpenStudy (anonymous):

two negative integers have a sum of -18 and a product of 80 what are the integers

OpenStudy (cwrw238):

let the numbers be x and y , then x + y = -18 xy = 80 solve for x and y

OpenStudy (campbell_st):

so you know that the multiplication of 2 negatives gives a positive just find 2 numbers that multiply to 80.... -10 and ? then check what they add to

OpenStudy (anonymous):

8 and 2

OpenStudy (anonymous):

8+2=10

OpenStudy (campbell_st):

no the 2 numbers are -10 x ? = 80 what is the value of ?

OpenStudy (anonymous):

but the question ask for -18

OpenStudy (campbell_st):

yes, but when you multiply 2 negatives the answer is positive so -10 x ? = 80 what is the value of ? and its negative

OpenStudy (anonymous):

x=-8

OpenStudy (campbell_st):

great so -10 + -8 = -18 so you have your answer

OpenStudy (anonymous):

-10 and -8

OpenStudy (campbell_st):

that's correct

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