a) 5x? - 7 = 13 b) 13x + 7 = 5 c) (x - 2)² + 1 = 10. AYUDAAAAA DOY CORONA........
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Respuesta:
Explicación paso a paso:
a) 5x -7 = 13
5x = 13 +7
5x = 20
x= 20:5
x=4
b) 13x +7 = 5
13x = 5 - 7
13x = -2
x= -2 :13
x= - 0,1538...
c) ( x -2 ) ² +1 = 10
x² - 2.2.x + 4 = 10 -1
x² -4x +4 = 9
x² -4x +4 -9 = 0
x² - 4x - 5 = 0
( x-1 ) ( x+ 5) estas son las raíces