Question

Escreva de forma reduzida a equação do 2°grau

(x+1/2)x=4x-7x/2

Answer 1

(x+1/2)x = 4x - 7x/2
x² + 1/2x = 4x/1 - 7x/2
x² + 1/2x = 8x/2 - 7x / 2
x² + 1/2x = -1x/2
x² + 1/2x + 1/2X = 0
x² + 2x/2 = 0
x² + x =0

x = - b + - √b² - 4.a.c / 2
x1 = -1 + √(1)² - 4.1.0 / 2
x1 = - 1 + √1 - 0 / 2
x1 = -1 + 1 / 2
x1 = 0 /2
x1 = 0

x = - b + - √b² - 4.a.c / 2
x2 = -1 - √(1)² - 4.1.0 / 2
x2 = - 1 - √1 - 0 / 2
x2 = -1 - 1 / 2
x2 = - 2 /2
x2 = -1