9ns439dkpu 9ns439dkpu
  • 04-02-2021
  • Mathematics
contestada

x2 + 4x - 9 = 5x + 3
O A. 4
O B. -3
O C. -7
O D. 5
E. -2
F-4

Respuesta :

rosh18
rosh18 rosh18
  • 04-02-2021

Answer:

[tex] {x}^{2} + 4x - 9 = 5x + 3 \\ {x }^{2} - x - 12 \\ {x}^{2} - 4x + 3x - 12 \\ x(x - 4) + 3(x - 4) \\ (x - 4)(x + 3) \\ x = 4 \: and - 3[/tex]

Answer Link

Otras preguntas

help me iwht this one please
A side of the triangle below has been extended to form an exterior angle of 64°. Find the value of x.
Which food is from the protein group? a. banana - 1.3 protein b. eggs - 6 g protein c. potato - 4.3 g protein d. butter - 0.1 g protein Explain you answer??
give one economic theory apply this theory to evaluate a certain economic activity​
Is Elsa dead in 1883?
An atom of a mystery element contains 7 protons, 7 neutrons, and 7 electrons. What is the mass number? A. 14 B. 7 C. 0 D. 21
Simplify:1/(a-3) (a-4) + 1/(a-4) (a-5) + 1(a-5) (a-3)​
A bag contains 2 blue, 1 red, and 3 green marbles. You choose one marble. Without putting it back, you choose a second marble. What is the probability that you
Name and describe the division of gymnosperms.
How did industrialization lead to the creation of larger and more powerful militaries? Industrialization increased alliances among European nations. Industriali