Solve the quadratic equation $x^2-2x-22.4=0$

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Algebra 2 - Learn how to complete the square to solve a quadratic, x^2 - 14x + 19 = 0

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Algebra 2 - Solving a factored quadratic equation using the zero product property, -x(3x + 5) = 0

https://www.youtube.com/watch?v=3on6rsKoK_k

Algebra 2 - Learn how to solve a quadratic equation by factoring x^2 - 4x = 21

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Algebra 2 - Solve a quadratic equation using the quadratic formula with two real solutions

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Algebra 2 - Solving by factoring and using the square root method x^2 + 16x + 64 = 15

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Plotting: $x^2-2x-22.4$

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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
Dx
|◻|
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

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Main Topic: Quadratic Formula

In elementary algebra, the quadratic formula is the solution of the quadratic equation. There are other ways to solve the quadratic equation instead of using the quadratic formula, such as factoring, completing the square, or graphing. Using the quadratic formula is often the most convenient way.

Used Formulas

See formulas (1)

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