Question

how to solve this equation??

Answer 1

x+y=6
x=6-y. equation 1
xy=8
using equation 2
6y-y^2=8
bow y^2 -6y-8=0
solve this equation and get the answer

Answer 2

Hi...☺

Here is your answer...✌

As Matrix are equal
Therefore, their corresponding elements must be equal

Comparing the corresponding elements
We get,

x+y = 6
x = 6-y ...(1)

And,
xy = 8

(6-y)y = 8 ...[ From (1) ]

6y-y² = 8

y²-6y+8 = 0

y²-4y-2y+8

y(y-4)-2(y-4) = 0

(y-2)(y-4) = 0

=> y = 2 or y = 4

Putting value of y in eq(1)
We get,

x = 4 or x = 2

And,

5+z = 5

z = 5-5

z = 0

HENCE,

x = 4 or 2
y = 2 or 4
z = 0