a) 2a-3b
2(1)-3(-2)
2+6
=8
b) 2b²-4b+2c²
2(-2)²-4(-2)+2(3)²
2(+4)+8+6
+6+8+6
=20
c)7a+2b²-4d
7(1)+2(-2)²-4(4)
7+2(+4)-16
7+8-16
=-1
d)2a+3b³-c+2d
2(1)+3(-2)³-3+2(4)
2+3(-8)-3+8
2-24-3+8
=-17
e)3a-3b+2d²
3(1)-3(-2)+2(4)²
3+6+2(16)
3+6+32
=41
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a) 2a-3b
2(1)-3(-2)
2+6
=8
b) 2b²-4b+2c²
2(-2)²-4(-2)+2(3)²
2(+4)+8+6
+6+8+6
=20
c)7a+2b²-4d
7(1)+2(-2)²-4(4)
7+2(+4)-16
7+8-16
=-1
d)2a+3b³-c+2d
2(1)+3(-2)³-3+2(4)
2+3(-8)-3+8
2-24-3+8
=-17
e)3a-3b+2d²
3(1)-3(-2)+2(4)²
3+6+2(16)
3+6+32
=41