Question

DIVIDE 27 intwo parts such that the product is 140

Answer 1

x+y=27,x=27-y....(1)
xy =140
Substitute (1)
(27-y)y=140
27y-y^2=140
y^2-27y+140=0
(y-20)(y-7)=0
y=20 or 7
Parts are 20 and 7