Respuesta y Explicación paso a paso:
5.
x(x + 1) - (4 - x)(x + 1) = 6(4 - x)
x² + x - (4 - x)(x + 1) = 6(4 - x)
x² + x + x² - 3x - 4 = 6(4 - x)
x² + x + x² - 3x - 4 = 24 - 6x
2x² + x - 3x - 4 = 24 - 6x
2x² - 2x - 4 = 24 - 6x
2x² - 2x + 6x - 4 - 24 = 0
2x² + 4x - 4 - 24 = 0
2x² + 4x - 28 = 0
a = 2
7.
[tex]3x^{-2}-5x{-1}+6=0[/tex] donde b = -5, y c = 6:
-(2 * -5 + 3 * 6)
-(-10 + 3 * 6)
-(-10 + 18)
-(8)
= -8
9.
x(x + 3) + 2 = 3x
x² + 3x + 2 = 3x
x² + 3x - 3x + 2 = 0
x² + 2 = 0 donde a es 1 y, b es 0:
1 * 0
= 0
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Respuesta y Explicación paso a paso:
5.
x(x + 1) - (4 - x)(x + 1) = 6(4 - x)
x² + x - (4 - x)(x + 1) = 6(4 - x)
x² + x + x² - 3x - 4 = 6(4 - x)
x² + x + x² - 3x - 4 = 24 - 6x
2x² + x - 3x - 4 = 24 - 6x
2x² - 2x - 4 = 24 - 6x
2x² - 2x + 6x - 4 - 24 = 0
2x² + 4x - 4 - 24 = 0
2x² + 4x - 28 = 0
a = 2
7.
[tex]3x^{-2}-5x{-1}+6=0[/tex] donde b = -5, y c = 6:
-(2 * -5 + 3 * 6)
-(-10 + 3 * 6)
-(-10 + 18)
-(8)
= -8
9.
x(x + 3) + 2 = 3x
x² + 3x + 2 = 3x
x² + 3x - 3x + 2 = 0
x² + 2 = 0 donde a es 1 y, b es 0:
1 * 0
= 0