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Find the roots of $2x^2-9x-18=0$

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 Solution

 Videos

How to find the roots of an quadratic equation - Free Math Help

https://www.youtube.com/watch?v=ROTzYjLcvE0

Solving a quadratic equation when not equal to zero by factoring

https://www.youtube.com/watch?v=tW1GTg_AooE

Algebra 2 - Finding the solutions by completing the square by factoring out a number, 2x^2 -10x+5=0

https://www.youtube.com/watch?v=PqFlIfH-n-Y

How to find the inverse of a cubic root function

https://www.youtube.com/watch?v=O6eGL6GO49Y

Solving quadratics by taking square roots examples | High School Math | Khan Academy

https://www.youtube.com/watch?v=VTlvg4wJ1X0

Solving square-root equations: no solution | Mathematics III | High School Math | Khan Academy

https://www.youtube.com/watch?v=ibeyn2QGjCM

 Function Plot

Plotting: $2x^2-9x-18$

SnapXam A²

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1

2

3

4

5

6

7

8

9

0



a

b

c

d

f

g

m

n

u

v

w

x

y

z

.

(◻)

+

-

×

◻/◻

/

÷

◻²

◻^◻

√◻

√

^◻√◻

^◻√

∞

e

π

ln

log

log_◻

lim

d/dx

D^□_x

∫

∫^◻

|◻|

θ

=

>

<

>=

<=

sin

cos

tan

cot

sec

csc

asin

acos

atan

acot

asec

acsc

sinh

cosh

tanh

coth

sech

csch

asinh

acosh

atanh

acoth

asech

acsch

 How to improve your answer:

 Main Topic: Equations

In mathematics, an equation is a statement of an equality containing one or more variables. Solving the equation consists of determining which values of the variables make the equality true. In this situation, variables are also known as unknowns and the values which satisfy the equality are known as solutions.

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