rex3514321
rex3514321 rex3514321
  • 13-07-2016
  • Mathematics
contestada

Solve 3x^2 = −12x − 15.

Respuesta :

matheeee
matheeee matheeee
  • 13-07-2016
3x^2+12x+15=0


Then divide by 3 to get the x by itself. 
x^2+4x+5=0


Factor to (x+5) (x-1) and solve for the two values of x.
Answer Link
bdroberts5
bdroberts5 bdroberts5
  • 13-07-2016
-2+i, -2-i are your two answers, you have to move everything to one side and solve
Answer Link

Otras preguntas

Write a number with three decimal places greater than 0.79 and less than 0.8 Its for my little brother Thanks in advance
What is the answer to 8n+16.2=1.6
Why do the Mexican put petals on the ground?
C6H12O6 + O2 → 6 CO2 + 6 H2O ΔG = –686 kcal/mol This reaction represents cellular respiration. What happens to the energy released from glucose during this reac
Do your cells use food to directly power their various functions? Explain your answer.
What is the answer to 17=5k-2
In a foreign country, half of 5 = 3. Based on that same proportion, what's one-third of 10?
Using E= mc2 , solve for m. Then, find the value of m if E = 725 and c= -5
how did capitalism change the balance of power in European countries?
ted is asked to multiply 10^2*18.72.how should he move the decimal point to get the correct product?