Respostas

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2014-04-07T21:59:23-03:00
A) x²+3x=

-4²+ 3. (-4)

16-12= 4

b) 10a³c²+2ac^5

10.5³.2²+2.5.2^5

10. 125. 4+ 10. 32

1250 . 4 + 320

5000+320 = 5320

c) -2R³T= 

-2.3³.7=

-2. 27.7=

-54.7= -378
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2014-04-07T22:01:27-03:00
A) ×²+3×=
4²+3.4=
16+12=
28

b) 10a³c² + 2ac⁵=
10.5³.2²+2.5.2⁵=
10.125.4+10.32=
5000+320=
5320

c) - 2r³t=
-2.3³.7=
-2.27.7=
-378


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