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Triturador1992
@Triturador1992
May 2020
2
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2) Calcule o valor numérico das seguintes expressões:
a) x
² + 3x para x = -4
b)
10a³c² + 2ac⁵
para
a = 5 e c = 2
c)
- 2r³t para r = 3 e t = 7
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yaaslobato
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
3 votes
Thanks 1
KerolyCibelle
A) ײ+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
1 votes
Thanks 1
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Lista de comentários
-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
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