Efetue as operações:
a)(-8).(-3)+(5).(-2)
b)(-32):(-4)+(2).(3)
c)(8).(-9)+(-1).(-6)
resolva as expressões algebricas:
x2-3x+1,x=-2
x3+2x;x=3
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Efetue as operações:
a)(-8).(-3)+(5).(-2)
b)(-32):(-4)+(2).(3)
c)(8).(-9)+(-1).(-6)
resolva as expressões algebricas:
x2-3x+1,x=-2
x3+2x;x=3
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a) 24+(-10)= 24-10=14
b) 8+6=14
c)-72+6=66
2.(-2)-3.(-2)+1= -2+6+1= 5
3.(3)+2.(3)= 9+6= 15