jadi1 jadi1
  • 02-04-2015
  • Mathematics
contestada

what are the factors of the following quadratic equation 12=x^2-x

Respuesta :

Panoyin
Panoyin Panoyin
  • 03-04-2015
12 = x² - x
12 - 12 = x² - x - 12
0 = x² - x - 12
x² - x - 12 = 0
x = -(-1) +/- √((-1)² - 4(1)(-12))
                         2(1)
x = 1 +/- √(1 + 48)
                 2
x = 1 +/- √(49)
              2
x = 1 +/- 7
           2
x = 0.5 +/- 3.5
x = 0.5 + 3.5        x = 0.5 - 3.5
x = 4                    x = -3
Answer Link

Otras preguntas

What is one of the solutions to the following system?(–5, 2)(–2, 1)(2, 5)(8, 5)
lesson( The road not taken)What is the central idea of the poem?​
Choose the answer that best describes hydrostatic equilibrium. (A). when liquid such as water becomes spheroid under weightless conditions (B). when a body has
when a cycles selling price is 2821 and the discount is 403 what wil be the marked price and discount rate in percent​
a soccer ball is moving to the right. how can you increase the velocity of the ball?
I NEED THIS ON PAPER AND RIGHT NOW :c
What causes heat energy when you rub two objects against each other?(2 points) The air around the objects The flow of heat from one object to the other The fric
Glucose and water are produced by photosynthesis? Correct or incorrect
i need 3 diffent names for slope
The dimensions of an original rectangle are 10cm by 16cm. What is the area of the dilated rectangle using a scale factor of 1/2?