Question

qual a raiz da equação?
preciso da conta completa​

Answer 1

x²-14x+48=0

x=-b+-\/b²-4ac/2a

x=-(-14)+-\/(-14)²-4(1)(+48)/2(1)

x=14+-\/196-192/2

x=14+-\/4/2

x=14+-2/2

x'=14+2/2

x'=16/2

x'=8

x''=14-2/2

x''=12/2

x''=6

S={6,8}

Answer 2

Resposta:

x² - 14x + 48 = 0

Δ = b² - 4 × a × c

Δ = ( -14)² - 4 × 1 × 48

Δ = 196 - 192

Δ = 4

$x'=\frac{-b+\sqrt{delta} }{2*a}\\\\x'=\frac{-(-14)+\sqrt{4}}{2*1}\\\\x'=\frac{14+2}{2}=\frac{16}{2}=8\\\\x''=\frac{-(-14)-\sqrt{4}}{2*1}\\\\x''=\frac{14-2}{2}=\frac{12}{2}=6\\\\( 8 , 6 )$

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