Question

(x + 1/2) . ( x - 1/2) + 3/4

Answer 1

(x + 1/2) . [(x - (1/2)] + 3/4

x² - (x/2) + (x/2) - (1/4) + 3/4

x²/1 - 1/4 + 3/4

(x² - 1 + 3)/4

4x² - 1 + 3

4x² = -2

x² = -2/4

x = ±√-1/2

S = ∅

Answer 2

Resposta:

x²-1

Explicação passo-a-passo:

(x + 1/2) . ( x - 1/2) + 3/4=

(x)²-(1/2)²+3/4=

=x²-1/4-3/4

= x²+(-1-3)/4

=x²+(-4)/4

=x²-1

Espero ter ajudado!