| 20. if x=7+y and 4x=6-2y what is the value of x
a.-4
b.-4/3
c.-1/6
d.10/3
e.10
24. if n>0 and 9x^2+kx+36=(3x+n^2)for all x what is the value
of k-n
a.0
b.6
c.12
d.30
e.36
thats all I feel like posting, (really need to know those) ill try 2 figure the others out later. |