Question

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Answer 1

Resposta:

esiste calculadora pra fazer contas

Answer 2

Resposta:

01.

a)2+5 = 7

b)4 - 6 = -2

c) 2.3+(-7) = 6-7= -1

d) -2.(-2)+3.3 = +4+9= 13

e)1+3.(-2)-(-3) = 1-6+3= -5+3 = -2

f)2²+3² = 4+9= 13

G) 3.(-2)²-(-3)= 3.4+3= 12+3= 15

02.

a)9a-7

b)8x²-4

c)-2m-1

d)4a+5x

e)3x²-7x

f)3a-5m

G)-2xy²

h)9xy+2x.