1. calculators
  2. Completing The Square

Completing the Square Calculator

Get detailed solutions to your math problems with our Completing the Square step-by-step calculator. Practice your math skills and learn step by step with our math solver. Check out all of our online calculators here!

Go!
Go!
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
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

1

Solved example of completing the square

$factor\left(x^2+8x+20\right)$
2

Add and subtract $\displaystyle\left(\frac{b}{2a}\right)^2$

$x^2+8x+20+16-16$
3

Factor the perfect square trinomial $x^2+8x+16$

$\left(x+4\right)^2+20-16$
4

Subtract the values $20$ and $-16$

$4+\left(x+4\right)^2$

Final Answer

$4+\left(x+4\right)^2$

Struggling with math?

Access detailed step by step solutions to thousands of problems, growing every day!