msberlyDEstrui msberlyDEstrui
  • 22-12-2016
  • Mathematics
contestada

Solve 5x2 = −30x − 65

Respuesta :

Аноним Аноним
  • 23-12-2016
I hope this helps you




5x^2+30x+65=0




5 (x^2+6x+13)=0



x^2+6x+13=0



a=1 b=6 c=13



disctirminant=b^-4ac



disctirminant=6^2-4.1.13



disctirminant=36-52



disctirminant= -16


x1= -6+square root of -16/2.1



x1= -6+4i/2=2i-3



x2= -6- square root of -16/2.1



x2= -6-4i/2= -3-2i
Answer Link

Otras preguntas

What is 7:9 in simplist form
The temperature danger zone is:*
what type of equation is y= -3/4x -5/4?
Identity true statements about quadratic function y = ax^{2} +bx+c, where a =/= 0. (1) It reaches either maximum or minimum at the vertex. (2) Its domain consis
if an organism can not reproduce,is it still considered living?why?
The area of a trapezoid is 40.92 square centimeters. One base of the trapezoid is 7.4 centimeters and its height is 6.2 centimeters.Which sentence explains how
x=square root of 880-8x
Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The kitchen is available for 3 hour
is 1/7  rational or irrational
If objects travelling at near the speed of light gain mass because their energy of their motion is being converted into mass, the does a photon gain mass?