=4x^2+20x-11

Simple and best practice solution for =4x^2+20x-11 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for =4x^2+20x-11 equation: 


Simplifying
0 = 4x2 + 20x + -11

Reorder the terms:
0 = -11 + 20x + 4x2

Solving
0 = -11 + 20x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 11 = 11
11 + -20x + -4x2 = -11 + 20x + 4x2 + 11 + -20x + -4x2

Reorder the terms:
11 + -20x + -4x2 = -11 + 11 + 20x + -20x + 4x2 + -4x2

Combine like terms: -11 + 11 = 0
11 + -20x + -4x2 = 0 + 20x + -20x + 4x2 + -4x2
11 + -20x + -4x2 = 20x + -20x + 4x2 + -4x2

Combine like terms: 20x + -20x = 0
11 + -20x + -4x2 = 0 + 4x2 + -4x2
11 + -20x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
11 + -20x + -4x2 = 0

Factor a trinomial.
(1 + -2x)(11 + 2x) = 0


Subproblem 1
Set the factor '(1 + -2x)' equal to zero and attempt to solve:

Simplifying
1 + -2x = 0

Solving
1 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -2x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -2x = 0 + -1
-2x = 0 + -1

Combine like terms: 0 + -1 = -1
-2x = -1

Divide each side by '-2'.
x = 0.5

Simplifying
x = 0.5

Subproblem 2
Set the factor '(11 + 2x)' equal to zero and attempt to solve:

Simplifying
11 + 2x = 0

Solving
11 + 2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-11' to each side of the equation.
11 + -11 + 2x = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 2x = 0 + -11
2x = 0 + -11

Combine like terms: 0 + -11 = -11
2x = -11

Divide each side by '2'.
x = -5.5

Simplifying
x = -5.5
Solution
x = {0.5, -5.5}

See similar equations:

| x^2-4y^2-x+2y=0 | | 12+16=5x | | kx^2+kx+1=4(x^2+x) | | -13/2= | | (3y-8)(5y+2)=y | | 2u^3(5u+2)(u+3)=a | | 2u^3(5u+2)(u+3)=0 | | r+58=89 | | 21(x/3)+21(x/7)=56 | | (3u-4w-4)(2u+7)=equation | | 2x^3+3x^2-mx-6=0 | | 14x+10y+15z=1800 | | s^2+25-15=0 | | 1,000,000+5,000,000,000,000,000c=2 | | 1,000,000-2x=.8 | | (-27x^5)^(2/3)/x^1/3 | | 5x+10=1579 | | ((-27x^5)^2/3)/x^1/3 | | x-5=40-15 | | x+2x+3x-7=-24 | | -35/-5+13=20 | | 21(8/3)= | | 4x^2+10x-192=0 | | 7=x/4-1 | | 2x+4=-2x+20 | | 39=-9-2a | | y^4-14y^2+49=0 | | -26=4+5n | | 260+65x=2405 | | k^2+7k+168=0 | | 3(n+4)=4+n | | 6=6-3a-6a |

Equations solver categories