A.a6-a2=a4 | B.ab+ba=2ab | C.a6÷a3=a2 | D.(a3)2=a9 |
A.-1 | B.1 | C.
| D.
|
A.(-1)-3=13 | B.(-2)2×(-2)3=26 |
C.(-5)8÷(-5)2=-56 | D.(-4)0=1 |
A.x2 | B.x
| C.x8 | D.1 |
A.(3xy2)2=6xy4 | B.2x-2=
| ||
C.(-x)7÷(-x)2=-x5 | D.(6xy2)2÷3xy=2 |
A.(-1)-1=1 | B.(-3)2=-6 |
C.π0=1 | D.(-2)6÷(-2)3=(-2)2 |
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