Question

Determinati xy stiind ca : a) x=4,y= -7
b) x=5,y= -9
c)x=2, y= +9
d) x= -7 , y= +6
e)x= -9 , y=+9
f) x= =4 , y=+11
g) x= +4 , y= +24
h) x= -5 , y= -13
i) x= -1 , y= -8

Answer 1

a)xy=4*(-7)=-28  b)xy=5*(-9)=-45;c)xy=2*9=18;d)xy=-7*6=-42;e)xy=-9*9=-81f)xy=-4*11=-44;g)xy=4*24=96;h)-5*(-13)=65i)-1*(-8)=8

Answer 2

a.xy=4.(-7)=-28 b.xy=5.(-9)=-45 c.xy=2.9=18 d.xy=-7.6=-42 e.xy=-9.9=-81 f.xy=4.11=44 g.xy=4.24=96 h.xy=-5.(-13)=65 i.xy=-1.(-8)=8