Question

this question is based on plus two maths chapter matrix, please say th answer.​

Answer 1

Answer:

(i) x=1,  y=4 ,z=3

(ii) x=2,4  , y=4,2 ,z=0

(iii)   x=2 ,y=4,z=3

Step-by-step explanation:

(i) x=1

   y=4

  z=3

(ii) x+y=6

    xy=8

5+z=5

z=0

x=6-y

(6-y)y=8

6y-y²=8

y²-6y+8=0

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

y=2 or y=4

x=6-y

if y=2,x=6-2=4

if y=4,x=6-4=2

(iii) x+y+z=9

  x+z=5

y+z=7

add x+z and y+z

  x+y+2z=12

-  x+y+ z=9

          z=3

x+3=5

x=2

y+3=7

y=4