Question

Alguém sabe responder a (a) e a (b)? Funçao quadratica/raizes da funçao!

Answer 1

Ola Agsus

a) 

x² - 3√3x + 6 = 0

delta
d² = 27 - 24 = 3
d = √3

x1 = (3√3 + √3)/2 = 4√3/2 = 2√3
x2 = (3√3 - √3)/2 = √3

b)

(3x - 1)² + (x - 2)²  = 25

9x² - 6x + 1 + x² - 4x + 4 = 25

10x² - 10x - 20 = 0

x² - x - 2 = 0

delta
d² = 1 + 8 = 9
d = 3

x1 = (1 + 3)/2 = 2
x2 = (1 - 3)/2 = -1

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