Question

x-y=10 and x+y =18 find xy​

Answer 1

Answer:

56

Step-by-step explanation:

x+y=18

x-y=10

- + -

2y = 8

y = 8÷2

y = 4

put value of y in x-y = 10

x - 4 = 10

x = 10 + 4

x = 14

therefore the value of xy

xy

14 × 4

56 answer