gsgsgsvdf
gsgsgsvdf gsgsgsvdf
  • 23-06-2020
  • Mathematics
contestada

Solve x2 = 12x - 15 by completing the square. Which is the solution set of the equation?
O {-6 -51-6 +51)
O {-5 - 721, -6 + 21}
O {6 - V51,6 + 51}
O {6 - 21,6 + 721)

Respuesta :

PollyP52 PollyP52
  • 23-06-2020

Answer:

(6-√21,  6+√21)

Step-by-step explanation:

x^2 - 12x = -15

(x - 6)^2 - 36 = -15

(x - 6)^2 = 21

x - 6 = ± √21

x = 6  ± √21

Answer Link

Otras preguntas

what is compound depreciation? ​
2cos2x+2cosx - 2√2 cosx = √2
Please answer, need help asap
before presenting an essay writers should take the time to make certain their message and tone are appropriate for
True (T) or False (F): a. ______ Plants appear green because chlorophyll reflect green light and absorb red light.
find the other angles Q P 840 S ​
Week 2 Discussion 1 read discussion background
LABELING EXERCISE 4-1: WORD ELEMENTS AND MEANINGS vowel or form, or suffix) and its meaning on the corresponding line. If the element has no meaning, write "NA.
Limones es una palabra derivada o compuesta
A patient develops a blood clot I. The brachial artery of the left upper limb, a portion is the clot breaks loose is it likely that this clot will return to the