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What two numbers when multiplied give you -80 and when added give you -11?
Updated: 9/18/2022
Wiki User
∙ 15y agoBest Answer
-91
Katheryn Barrows
Lvl 10
∙ 3y agoThis answer is:
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lenpollock
Lvl 15
∙ 1y agoLet the numbers be 'm' & 'n'
Hence by ,multiplication
mn = -80
By addition m + n = -11
Algebraically rearrange
m = - 11 - n
Substitute
(-11 - n) n = -80
Multiply out the brackets
-n^2 - 11n = -80
n^2 + 11n - 80 = 0
This is now in quadratic form to be factored.
( n + 16)(n - 5) = 0
Hence
n = -16 & n = 5
Done!!!! Hope that helps!!!!!
(
-80
This answer is:
Wiki User
∙ 15y agoThe numbers are -16 and 5.
This answer is:
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