Answer:
x=17, y=9. (17, 9).
Step-by-step explanation:
x+y=26
3x+8y=123
------------------
x=26-y
3(26-y)+8y=123
78-3y+8y=123
78+5y=123
5y=123-78
5y=45
y=45/5
y=9
x=26-9=17
86m^2
5x^2+4x-2 This is a second degree polynomial since the largest exponent is x^2
15 ,90 30 45.90,23,23,45,
0
,12,3,
