Calcule as raizes das funções abaixo :
A - F(x)=3x+4
B-F(x)=3x+6
C-F(x)=-2x+8
D-F(x)=-x-48
E-F(x)=x+43
F-F(x)=5x-40
G-F(x)=-3x+20
H-F(x)=-6x+44
Olá endy!!!
Basta igualar a zero cada uma delas e resolver....mãos a obra:
a) 3x+4 =0 >>>>>>>>>3x = -4....................X = - 4/3
b) 3x+6 =0 >>>>>>>>>3x = -6....................X = - 6/3 >>>>>>X = - 2
c) -2x+8 =0 >>>>>>>>>-2x = -8....................X = - 4/-2>>>>>X = 2
d) -x - 48 =0 >>>>>>>>>-x = 48....multiplica tudo por (-1)....X = - 48 >>>>>>X = - 48
e) x+43 =0 >>>>>>>>>x = - 43
f) 5x - 40 =0 >>>>>>>>>5x = 40........X = 40/5 >>>>>>X = 8
g) -3x +20 =0 >>>>>>>>>-3x = -20.....X = - 20/-3 >>>>>>X = 20/3
h) -6x +44 =0 >>>>>>>>>-6x = - 44.......X = - 44/-6 >>>>>>X = 22/3
é isso UFA!!!!
