Question

preciso urgente galera pfvr x²-16x+63=0 ?

Answer 1

x²-16x + 63 = 0

a = 1 ; b =-16 ; c = 63 

▲ = b^2 - 4a*c

▲ = 4 

x = (16 ± 2)/2 

x1 = (16 + 2)/2 = 18/2 = 9
x2 = (16 - 2)/2 = 14/2 = 7 

S = {7,9}

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06/10/2016
Sepauto 
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