20brookie06
20brookie06 20brookie06
  • 16-11-2020
  • Mathematics
contestada

Solve x2 − 7x = −12.

a. x = 2 and x = 6
b. x = 6 and x = −2
c. x = −4 and x = −3
d. x = 4 and x = 3

Respuesta :

gufeliz1965
gufeliz1965 gufeliz1965
  • 16-11-2020

x^2 - 7x = -12

Add 12 to both sides.

Doing so, we get x^2 - 7x +12 = 0.

We now factor the left side.

Doing so, we get (x - 3) (x - 4) = 0.

Set each factor to 0 and solve for x.

x - 3 = 0

x = 3

x - 4 = 0

x = 4

Answer: Choice d

Answer Link

Otras preguntas

Tu (ne pas enregistrer) mon émission préférée jeudi dernier? VHL Central Stuff Please help
Are you in favor of the ruinous economic policy of the democratic platform committee?
Why give amoxicillin before wisdom teeth removal?
Identify the misplaced modifier and indicate the word in the sentence that it should follow. He had carefully marked the places in red ink we were to watch for
Branch Rickey lost that fight, but when he became the boss of the Brooklyn Dodgers in 1943, he felt the time for equality in baseball had come. He knew that ach
An encyclopedia is useful at which stage in the research process? after selecting a topic as a means of getting general information after formulating a thesi
Given that x, y, and z are the lengths of the sides of a triangle, and given that x < y < z, which of the following statements is true? A. (z – y) >
could someone help me with this? ty
Katie and Margarita have $20 each to spend at students Choice bookstore where all students receive a 20% discount they both want to purchase a copy of the same
Why does it seem harder to start sliding a couch across a carpeted floor than it does to keep it moving?