Question

If 3x2 – x + 9 = 0, what are the values of x?

Answer 1

do you know quadratic formula ?

Answer 2

this can help you
http://www.purplemath.com/modules/quadform.htm

Answer 3

3x2 – x + 9 = 0
6-x+9=0
x=-9-6
x=-15

Answer 4

just plug values for a b and c into equation

Answer 5

Compare your quadratic equation with \(ax^2+bx+c=0\)
find \[a=...?\\b=...?\\c=...?\\\] \[ \\ \sqrt{(b^2-4ac)}=...?\]
then the two roots of x are:
\(\huge{x_{1,2}=\frac{-b \pm \sqrt{b^2-4ac}}{2a}}\)

Answer 6

This is a type of linear equation.

Answer 7

linear ?
\(3x^2 \implies \) quadratic

Answer 8

That is 3x2 not 3^2,Isn't it? @imbreanna