Question

x2-9x+14=0 me ajudem pra hoje ainda

Answer 1

$2 \times - 9 \times = - 14 \\ - 7 \times = - 14 ( - 1) \\ 7 \times - 14 \\ \times = \frac{14}{7} \\ \times = 2$

Answer 2

x ² - 9x + 14 = 0

a = 1

b = -9

c = 14

Delta:

Δ = b ² - 4 . a . c

Δ = - 9 ² - 4 .1 . 14

Δ = 81 - 56

Δ = 25

Bhaskara:

X = - b +- √Δ / 2. a

X = - (- 9) +- √25 / 2 . 1

X = 9 + 5 / 2 = 14 / 2 = 7

X = 9 - 5 / 2 = 4 / 2 = 2

S = {7, 2}