Question

reduza as expressão mais simples:
a) 3 (a²+a+1) +2 (a²+2a - 2) - (a²+3a-3)

Answer 1

3a^2 +3a+3 + 2a^2 +4a-4 -a^2 -3a +3
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Organizando;
3a^2 +2a^2 -a^2 +3a+4a-3a +3-4+3=
4a^2 +4a +2

Answer 2

a) 3 (a²+a+1) +2 (a²+2a - 2) - (a²+3a-3) =

(3a² + 3a + 3) + (2a² + 4a - 4) - (a² + 3a - 3) =

3a² + 2a² - a² + 3a + 4a - 3a + 3 - 4 + 3 =

4a² + 4a + 2

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18/02/2016 
Sepauto - SSRC
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