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Solve the quadratic equation $-3x^2+24x-42=0$

Step-by-step Solution

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Final answer to the problem

$x=\frac{8+\sqrt{8}}{2},\:x=\frac{8-\sqrt{8}}{2}$
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Step-by-step Solution

How should I solve this problem?

  • Choose an option
  • Solve for x
  • Find the derivative using the definition
  • Solve by quadratic formula (general formula)
  • Simplify
  • Find the integral
  • Find the derivative
  • Factor
  • Factor by completing the square
  • Find the roots
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1

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

$3x^2-24x+42=0$

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$3x^2-24x+42=0$

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Learn how to solve problems step by step online. Solve the quadratic equation -3x^2+24x+-42=0. For a simpler handling of the equation, change the sign of all terms, multiplying the entire whole by -1. We need to isolate the dependent variable x, we can do that by simultaneously subtracting -24x+42 from both sides of the equation. Simplify the product -(-24x+42). Factor the polynomial 24x-42 by it's greatest common factor (GCF): 6.

Final answer to the problem

$x=\frac{8+\sqrt{8}}{2},\:x=\frac{8-\sqrt{8}}{2}$

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Function Plot

Plotting: $-3x^2+24x-42$

SnapXam A2
Answer Assistant

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Got a different 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

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