Question

Take x= -6 and y=4 find i) x+y,
ii) (x-y ) –x
iii) x 2 + y 2 +2xy

Answer 1

I think it's either -3 or 10

Answer 2

I) -2

ii) -60

III) 4

Explanation:

i) x+y = -6+4=-2

ii) (x-y)-x = (-6-4)-(-6)= -60

III) x^2+y^2+2xy = (-6)^2+4^2+2(-6)(4)= 4