considere a função do 1 grau f(x)=-3x+2 determine os valores de x para que se tenha a. f(x)=0 b.F(x)= -1/2?
c. F(x)=11
pfv glr trabalho vld 30 pts
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c. F(x)=11
pfv glr trabalho vld 30 pts
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Verified answer
f(x) = -3x + 2
-3x + 2 = 0
3x = 2
x = 2/3
-3x + 2 = -1/2
-6x + 4 = -1
6x = 5
x = 5/6
-3x + 2 = 11
3x = -9
x = -3
pronto
a)-3x+2=0
-3x=-2
3x=2
x=2/3
b)-3x+2=-1/2
-3x=-1/2-2
-3x=(-1-4)/2
-3x=-5/2
3x=5/2
x=5/2/3
x=5/6
c)-3x+2=11
-3x=11-2
-3x=9
3x=-9
x=-9/3
x=-3