Question

Para x =5,calcule o valor de:
A)2x=
B)3x+1=
C)9-x=
D)x-15=
E)x^2=
F)2x^3-1=

Answer 1

2x = 2 ,5 = 10
======================
3x + 1 =
3.5 + 12 =
15 + 12 = 27
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9 - x =
9 - 5 = 4
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x - 15 =
5 - 15 = - 10
===============================
x² = 5² = 25
====================
2x³ -1 =
2 . 5³ - 1 =
2 . 125 - 1 =
250 - 1 = 249

Answer 2

a) 2.5=10
b)3.5+1=16
c)9-5=4
d)5-15=-10
e)5².2=50
f)2.5³-1=249