xxgissellexx
xxgissellexx xxgissellexx
  • 13-03-2019
  • Mathematics
contestada

i need help,how do you solve this?
[tex]3 {x}^{2} + 2x - 5[/tex]
​

Respuesta :

MrsStrong
MrsStrong MrsStrong
  • 17-03-2019

Answer:

x = 1, -5/3

Step-by-step explanation:

To solve the quadratic, use the quadratic formula:

[tex]\frac{-b+/-\sqrt{b^2-4ac} }{2a}[/tex]

Here a=3, b=2 and c=-5.

[tex]w=\frac{-b+/-\sqrt{b^2-4ac} }{2a} \\w=\frac{-2+/-\sqrt{2^2-4(3)(-5)} }{2(3)} \\w=\frac{-2+/-\sqrt{4+60} }{6} \\w=\frac{-2+/-\sqrt{64} }{6} \\w=\frac{-2+/-8 }{6} \\w=\frac{-2+8 }{6}=\frac{6}{6}=1 \\and\\w=\frac{-2-8 }{6} =\frac{-10}{6}=-\frac{5}{3}[/tex]

Answer Link

Otras preguntas

during the early days industrialization many members of congress believed that tariffs were necessary to
How many periods does the modern periodic table have?
To what does Cassius compare Caesar in this speech
A nurse completes an afternoon assessment of a client who is a nurse and who is visiting the area on vacation. the client states that the nurse must be having a
________ is the final completion of the ego.
The highest rates of illicit drug use occur among adults aged ________.
A cart for hauling ore out of a gold mine has a mass of 435 kg, including its load. the cart runs along a straight stretch of track that is sloped 4.77° from t
Nylon is a “big” covalent molecule used to make backpacks. Which property of covalent compounds is most useful in making backpacks?
What did the introduction of silk into the Mediterranean do for the Abbasid Empire?
What values of c and d make the equation true? c = 2, d = 2 c = 2, d = 4 c = 6, d = 2 c = 6, d = 4