jedchance jedchance

19-05-2017
Mathematics

contestada

if a product twice a number decreased by five and five times a number increased by seven is zero; find the numbers.

Respuesta :

akaleti47 akaleti47

19-05-2017

(2x-5)(5x+7)=0

x=5/2 and x=-7/5 these are the 2 numbers

Answer Link

belinda1975 belinda1975

19-05-2017

Answer 5/2 and - 7/5

Product P = (2x1-5)(5x2+7)=0
Solving the binomials, we get
x1=5/2 and x2= -7/5

Answer Link

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