Question

x²-10x +24=0 qual e a resposta em

Answer 1

2x-10x+24=0
2X-10x=0-24
-8x=-20  (-1)
8x=-20
x=20:8
x=2,5
        OBS:acho que e assim nao tenho certeza! espero ter ajudado!!!

Answer 2

$x^2 -10x + 24=0 \\ a = 1, b = -10, c = 24 \\ \\ \Delta = b^2 - 4ac \\ \Delta = (-10)^2 - 4 \times 1 \times 24 \\ \Delta = 100 - 96 \\ \Delta = 4 \\ \\ x = \frac{-b \pm \sqrt{\Delta}}{2a} \\ x = \frac{-(-10) \pm \sqrt{4}}{2 \times 1} \\ x = \frac{10 \pm 2}{2} \\ \\ x' = \frac{10 + 2}{2} = \frac{12}{2} = 6 \\ x'' = \frac{10 - 2}{2} = \frac{8}{2} = 4 \\ \\ x = 6, x = 4$