tinkerstinker313 tinkerstinker313

12-02-2022
Mathematics

contestada

Solve for x in the equation 3x2 - 18x+5=47.

Solve for x in the equation 3x2 18x547 class=

Respuesta :

goddessboi goddessboi

12-02-2022

Answer:

[tex]x=3\pm\sqrt{23}[/tex]

Step-by-step explanation:

Complete the Square

[tex]3x^2-18x+5=47\\\\3x^2-18x-42=0\\\\x^2-6x-14=0\\\\x^2-6x-14+23=0+23\\\\x^2-6x+9=23\\\\(x-3)^2=23\\\\x-3=\pm\sqrt{23}\\\\x=3\pm\sqrt{23}[/tex]

Answer Link

Otras preguntas

Which expression is equivalent to 27/125

Amy raised £n for charity. Chris raised £18 more then any. The mean amount raised by the two of them is £45. Work out how much money each one of them raised

Solve the quadratic by factoring 2X²-2X-12=0

How to find the reference angle of -11pi/3 ?

What was the major purpose of the Truman Doctrine?

Heat is released when H2 gas and O2 gas react to form H2O. Why? A. Breaking the H–H bond in H2 gas releases heat. B. Breaking the O–O bond in O2 gas releases he

example of onomatopoeia in the seven ages of man

name a metal that doesn't conduct electricity

a subway train starts from rest at a station and accelerates uniformly at 1.8m/s^2 for 15 sec. then it runs at a constant speed for the next 35 sec. before dece

A sound wave of 70 cm travels 840 m in 2.5 sec. What is the velocity and frequency of sound?