Question

(x+y)²=100 (x-y)²=16​

Answer 1

Answer:

Step-by-step explanation:

(x+y)²=100

X+Y=√100=10...i

(x-y)²=16​

X-Y=√16=4...ii

ADD EQ i &ii

X+Y=10

X-Y=  4

2X  = 14

X=14÷2

X=7

SUBSTITUTING X IN EQ i

X+Y=10

7+Y=10

Y=10-7

Y=3