Answer:
1. -18
2. -27
3. 13
4. -24
5. 20
Step-by-step explanation:
1.
[tex]-(6a+10a-2a); a=2\\-(6(2)+10(2)-2(2))\\-(12+20-4)\\-(22-4)\\-(18)\\-18[/tex]
2.
[tex]r^3+2r+6; r=-3\\-3^3+2(-3)+6\\-27+-6+6\\-27[/tex]
3.
[tex]pn+(n+m)^2; m=1, n=4, p=-3\\-3(4)+(4+1)^2\\-12+5^2\\-12+25\\13[/tex]
4.
[tex]6xy-6; x=1, y=-3\\6(1)(-3)-6\\-18-6\\-24[/tex]
5.
[tex](a-2)^2+b^2+7; a=5, b=-2\\(5-2)^2+(-2)^2+7\\9+4+7\\20[/tex]
