Question

(X-3)2 = (x+4)2
Resposta= -1/2 ??
*Calculo, por favor

Answer 1

Resposta:

(x-3)²=(x+4)²

x²-6x+9 =x²+8x+16

-6x-8x=16-9

-14x =7

x=-7/14 =-1/2

Answer 2

(x - 3)² =(x + 4)²
(x - 3) • (x - 3) =(x + 4) • (x + 4)
x² - 3x - 3x + 9 = x² + 4x + 4x + 16
x² - 6x + 9 = x² + 8x + 16
x² - x² - 6x - 8x = 16 - 9
- 14x = - 7 (-1)
14x = - 7
x = -7/14 (÷7)
x = - 1/2