Resposta:
a) x = 0
b) x1 = 13, x2 = -13
c) x1 = 9, x2 = 0
d) x1 = 0, x2 = 1/2
e) x1 = +-2, x2 = 4
Explicação passo a passo:
a) 20x² = 0
x² = 0/20
x² = 0
x = 0
b) a = 1 b = -169 c = 0
Delta=b² - 4.a.c
0^- 4.1.(-169)
-4.(-169)
676
raiz quadrada de 676 = 26, agora usaremos a fórmula de Bhaskara:
0+-26 x1 = 26/2 = 13
2a x2 =-26/2 = -13
c)
27.27 - 4.1.0
729-0
27+-27 x1 = 54/6 = 9
6a x2 = 0/6 = 0
d) x.(2x-1) = 0
2x-1 = 0
x = 0 x1 = 0
x = 1/2 x2 = 1/2
e) 4x²+16
x²=16/4 x1 = +-2
x²=4 x2 = 4
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Verified answer
Resposta:
a) x = 0
b) x1 = 13, x2 = -13
c) x1 = 9, x2 = 0
d) x1 = 0, x2 = 1/2
e) x1 = +-2, x2 = 4
Explicação passo a passo:
a) 20x² = 0
x² = 0/20
x² = 0
x = 0
b) a = 1 b = -169 c = 0
Delta=b² - 4.a.c
0^- 4.1.(-169)
-4.(-169)
676
raiz quadrada de 676 = 26, agora usaremos a fórmula de Bhaskara:
0+-26 x1 = 26/2 = 13
2a x2 =-26/2 = -13
c)
27.27 - 4.1.0
729-0
27+-27 x1 = 54/6 = 9
6a x2 = 0/6 = 0
d) x.(2x-1) = 0
x = 0
2x-1 = 0
x = 0 x1 = 0
x = 1/2 x2 = 1/2
e) 4x²+16
x²=16/4 x1 = +-2
x²=4 x2 = 4
Jesus te ama