Question

Resolva a equação 6 elevado ao quadrado-4x-2=0

Answer 1

6x^2 - 4x - 2 = 0

a = 6 ; b = - 4 ; c = - 2

formula delta
============

D = b^2 - 4 a c

D = (-4)^2 - 4 ( 6)(-2)

D = 16 - 24 (-2)

D = 16 + 48

D = 64

formula de braskara
==================

x = - b - + \/D
......________
............2a

x = - (-4) - , + \/64
........__________
.................2 (6)

x = 4 - , + 8
......_______
..............12

x1 = 4 - 8
.......____
...........12

x1 = - 4
........___...(÷4)
..........12

x1 = - 1
........___
..........3

x2 = 4 + 8
.........____
.............12

x2 = 12
......___
........12

x2 = 1