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# Solve the quadratic equation $-5x^2-10x-4=0$

## Step-by-step Solution

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### Videos

$x=-0.552786,\:x=-1.447214$
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## Step-by-step Solution

Problem to solve:

$-5x^2-10x-4=0$

Specify the solving method

1

For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by $-1$

$5x^2+10x+4=0$

Learn how to solve quadratic equations problems step by step online.

$5x^2+10x+4=0$

Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation -5x^2-10x-4=0. For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by -1. To find the roots of a polynomial of the form ax^2+bx+c we use the quadratic formula, where in this case a=5, b=10 and c=4. Then substitute the values of the coefficients of the equation in the quadratic formula:<ul><li>\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}</li></ul>. To obtain the two solutions, divide the equation in two equations, one when \pm is positive (+), and another when \pm is negative (-). Subtract the values 2\sqrt{5} and -10.

$x=-0.552786,\:x=-1.447214$
SnapXam A2

### beta Got another answer? Verify it!

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

$-5x^2-10x-4=0$