Question

$x + y = 85 \\ x.y = 102$
find x and y..
​

Answer 1

Step-by-step explanation:

y=85-x________1

y=102/x_______2

85-x=102/x_______from 1 & 2

x(85-x)=102

85x-x²=102

Multiplying by - 1

x²-85x+102=0

Then solve it by Quadratic equation

U will get the value of x then find y by substituting in equation 1&2