Question

Encontre a raiz da função:
y=5x^2+11x+2

fórmula se baskara...

Answer 1

5x² + 11x + 2 = 0

a = 5 ; b = 11 ; c = 2

▲ = b² - 4ac
▲ = 11² - 4*5*2 = 121 - 40 = 81
▲ = 81

x1 = -b + √▲ / 2a = -11 + √81 / 2*5 = -11 + 9 / 10 = -2/10 = -1/5

x2 = -b - √▲ / 2a = -11 - √81 / 2*5 = -11 - 9 / 10 = -20/10 = -2

S = {-1/5 ; -2}

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16.02.2016 
Sepauto - SSRC
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