Question

Qual o resultado? ײ-8×+12=0

Answer 1

Delta: 64 -48 = 16 = 4

$\frac{8 + ou - 4}{2} = \\ \\ \frac{12}{2} = 6 \\ \\ \frac{4}{2} = 2$

S={2,6}

Answer 2

x²-8x+12=0
A=1                Δ= -8² - 4.1.12
B= -8              Δ= 64 -48
C= 12              Δ= 16

$Baskara => \frac{-b+- \sqrt{Delta} }{2a} \\ \frac{8+- \sqrt{16} }{2.1} = X' => \frac{12}{2} =6 \\ \frac{8+- \sqrt{16} }{2.1} = X'' => \frac{4}{2} = 2$

S = (2,6)