Question

Solve: x2 − 2x − 24 = 0

Answer 1

do u have to factor

Answer 2

yeah

Answer 3

\[x^2 - 2x - 24 = 0\]Find two factors of -24 that add up to -2

Answer 4

-6 , 4

Answer 5

x² - 2x - 24 = 0
x² - x = 24 + (- 1)²
x² - x = 24 + 1
(x - 1)² = 25
x - 1 = ± 5

= x - 1 - 5, = x - 6
= x - 1 + 5, = x + 4

Answer: (x - 6)(x + 4)

Answer 6

x = 4, x = 6

x = 4, x = −6

x = −4, x = 6

x = −4, x = −6

Answer 7

those are the answer choices

Answer 8

Alright. Then you can place them by splitting the x^2 term.
\[x^2 - 2x - 24 = 0 \implies (x - 6)(x + 4) = 0\]Now solve for x by setting each equal to 0.
x - 6 = 0
x + 4 = 0
Can you solve these two equations?

Answer 9

6, -4?

Answer 10

Yup. x = 6, -4 :)

Answer 11

thank you both(:

Answer 12

Glad to help :)

Answer 13

yup np