Question

despejar ecuación de ( r + 2 ) ( r − 4 ) = ( r − 1 ) ( r + 3 )

Answer 1

Respuesta:

Un placer  ayudarte

despejar ecuación de ( r + 2 ) ( r − 4 ) = ( r − 1 ) ( r + 3 )

$( r + 2 ) ( r - 4 ) = ( r - 1 ) ( r + 3 )\\\\r^{2} -2r-8 = r^{2} +2r-3 \\\\r^{2} -r^{2}-2r-2r = -3+8\\\\-4r = 5\\\\-r = \frac{5}{4} \\\\(-1)(-r = \frac{5}{4} )\\\\r= -\frac{5}{4}$