Question

sendo q e p dois numeros positivos.tal que p-2q=4ep+q2=7

Answer 1

Oi Admir

p - 2q = 4

p + q² = 7 

q² + 4 + 2q - 7 = 0

q² + 2q - 3 = 0 

delta
d² = 4 + 12 = 16
d = 4

q1 = (-2 + 4)/2 = 2/2 = 1
q2 = (-2 - 4)/2 = -6/2 = -3 

p1 = 4 + 2q1 = 4 + 2*1 = 6
p2 = 4 + 2q2 = 4 - 6 = -2

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