1. 2+Ab, 3.(A + B)\Xb2 \Xf78, 4.A\Xb3 2014b\Xb2, A.2, B.8, C.8, D.17, E.-2, F.15, G.4, H.-14,

1. 2+ab

3.(a + b)² ÷8
4.a³ —b²

A.2
B.8
C.8
D.17
E.-2
F.15
G.4
H.-14

 

Answer:

1.B

2.G

3.H

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