Question

(x-1)² +13 < (x+3)² -3​

Answer 1

Binomio al cuadrado

(a+b)² = a² + 2ab + b²

(a-b) ²= a² - 2ab + b²

Resolvemos

x² - 2x + 1 + 13 < x² + 6x + 9 - 3

14 - 2x < 6x + 6

12 < 8x

12 /8 < x

3/2 < x