tdevheEl7iapure
tdevheEl7iapure tdevheEl7iapure
  • 22-09-2016
  • Mathematics
contestada

solve 3x2 = −12x − 15. x = −4 ± 2i x = −4 ± i x = −2 ± 2i x = −2 ± i

Respuesta :

erato erato
  • 09-03-2019

Answer:    x = −2 ± i

Step-by-step explanation:  solution of ax²+bx+c=0 is given by

                 x= ( -b±√(b²-4ac))/2a

            here a=3,b=12 and c=15

          ⇒    x=  (-12±√(12²-4×3×15))/6

           ⇒   x=  (-12±√(144-180))/6

           ⇒   x=  (-12±√(-36))/6

          ⇒    x=  (-12±6i)/6

            ⇒  x=  -2±i

Answer Link

Otras preguntas

£2292.84 rounded to 2DP
217+37(3x−5)=−4 Drag and drop the statement that shows the solution to the equation into the box.
The number of atoms in 8.93 g of zinc ?
The current through a 12v lamp when it is connected to a 12v battery is 2.0 A. Calculate the resistance of the lamp at this current
A homogeneous substance that can be seperated into two or more substances only by a chemical change is an ?
What three cities form the global centers of economic activity?
Is the process of bananas ripening a chemical change or a physical change? explain?
Solid fats generally have a high proportion of which type of fatty acid?
Alexander hamilton opposed a bill of rights mainly because he believed that
When did Fidel Castro take power, and what immediate actions did he take to upset relations between Cuba and the United States