$\frac{ {x}^{2} - 7x + 12}{ {x}^{2} - x - 12 } \\ = \frac{ {x}^{2} - 4x - 3x + 12 }{ {x}^{2} - 4x + 3x - 12 } \\ = \frac{x(x - 4) - 3(x - 4)}{x(x - 4) + 3(x - 4)} \\ = \frac{(x - 3)(x - 4)}{(x + 3)(x - 4)} \\ = \frac{x - 3}{x + 3}$

x² - x - 12 ≠ 0

x² - 4x + 3x - 12 ≠ 0

x (x - 4) + 3 (x - 4) ≠ 0

(x + 3)(x - 4) ≠ 0

x ≠ -3 or x ≠ 4

(B)

3 0

3 years ago

Help math pls due in 5 min

Dima020 [189]

Your answer is D
hope this helps

8 0

3 years ago

Which model represent the factors of 4x2-9

lions [1.4K]

Step-by-step explanation:

4x²-9

4x²+6x-6x-9

2x(2x+3)-3(2x+3)

(2-3)(2x+3)

solution

(8x-3)(2x+3)

6 0

2 years ago

Ramona is 39 years old, and she owns her car, which she uses to drive to work. Her collision deductible is $500, and she does no

laiz [17]

Answer:

Ramona’s annual premium is $1725.

Step-by-step explanation:

($690) X 2 X 1.25 = $1725.

7 0

3 years ago