(x - 3 / 2) ^ 2 = (x + 1) * (x - 7 / 2) - 1 / 4?
(x - 3 / 2) ^ 2 = (x + 1) * (x - 7 / 2) - 1 / 4.
(x - 3 / 2) ^ 2 = (x + 1) * (x - 7 / 2) - 1 / 4.
Jorgista
Aplicas productos notables ( a - b)² = a² - 2ab + b²
( x - 3 / 2 )² = ( x + 1)( x - 7 / 2) - 1 / 4
x² - 2(x)( 3 / 2) + (3 / 2)² = x² - 7x / 2 + x - 7 / 2 - 1 / 4 Eliminamos x² - 6x / 2 + 9 / 4 = - 7x / 2 + x - 7 / 2 - 1 / 4 - 6x / 2 + 7x / 2 - x = - 7 / 2 - 9 / 4 - 1 / 4 El mcm de 2 y 4 es 4 - 12x / 4 + 14x / 4 - 4x / 4 = - 14 / 4 - 9 / 4 - 1 / 4
( - 12x + 14x - 4x) / 4 = ( - 14 - 9 - 1) / 4 - 2x / 4 = - 24 / 4 Simplificamos el 4 - 2x = - 24
x = - 24 / - 2
x = 12.
Ro123lima
(x - 3 / 2)² = (x + 1)(x - 7 / 2) - 1 / 4
x² - 2(3 / 2)x + (3 / 2)² = x² - (7 / 2)x + x - (7 / 2) - 1 / 4
x² - (6 / 3)x + (9 / 4) = x² - 5 / 2x - 15 / 4 - (6 / 2)x + (5 / 2)x = - - 15 / 4 - 9 / 4
1 / 2 x = 24 / 4
1 / 2x = 24 / 4
x = 12.