16-3x-4x^2=0

Simple and best practice solution for 16-3x-4x^2=0 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 16-3x-4x^2=0 equation:


Simplifying
16 + -3x + -4x2 = 0

Solving
16 + -3x + -4x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-4 + 0.75x + x2 = 0

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 0.75x + 4 + x2 = 0 + 4

Reorder the terms:
-4 + 4 + 0.75x + x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 0.75x + x2 = 0 + 4
0.75x + x2 = 0 + 4

Combine like terms: 0 + 4 = 4
0.75x + x2 = 4

The x term is 0.75x.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x + 0.140625 + x2 = 4 + 0.140625

Reorder the terms:
0.140625 + 0.75x + x2 = 4 + 0.140625

Combine like terms: 4 + 0.140625 = 4.140625
0.140625 + 0.75x + x2 = 4.140625

Factor a perfect square on the left side:
(x + 0.375)(x + 0.375) = 4.140625

Calculate the square root of the right side: 2.034852575

Break this problem into two subproblems by setting 
(x + 0.375) equal to 2.034852575 and -2.034852575.

Subproblem 1

x + 0.375 = 2.034852575 Simplifying x + 0.375 = 2.034852575 Reorder the terms: 0.375 + x = 2.034852575 Solving 0.375 + x = 2.034852575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = 2.034852575 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = 2.034852575 + -0.375 x = 2.034852575 + -0.375 Combine like terms: 2.034852575 + -0.375 = 1.659852575 x = 1.659852575 Simplifying x = 1.659852575

Subproblem 2

x + 0.375 = -2.034852575 Simplifying x + 0.375 = -2.034852575 Reorder the terms: 0.375 + x = -2.034852575 Solving 0.375 + x = -2.034852575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + x = -2.034852575 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + x = -2.034852575 + -0.375 x = -2.034852575 + -0.375 Combine like terms: -2.034852575 + -0.375 = -2.409852575 x = -2.409852575 Simplifying x = -2.409852575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.659852575, -2.409852575}

See similar equations:

| 2+3+5=(3-1)x | | 9.5x+10y=4607.5 | | 6*16-90*2-10=x | | 0.71-.22=1.03-.62 | | 9x^2-17x^6+27x^7=0 | | 6*16-90*2-10= | | 7y=3-10x | | (-6x+2)(9x+3)= | | 5p+5s=tp-5 | | -y=-x+5 | | b/11-7b/11=12/11 | | 6-x/2=3 | | 3m+3-6m=-3(m-1) | | -10(7X-17)=7X+38 | | 5a+5p=tp-5 | | 4[5x+7+8x]+2=-18 | | 24x^3y^4-52x^4y^3=0 | | a=(b-c)/4 | | b-1+2b=36 | | -3=10x+3x^2 | | A(n-3)+8=BNKG | | -4(9x+6)= | | -2x^2=15 | | 10x^2=1690 | | 8x-4/3y=3 | | x^2-3x^3=0 | | 4(2x-6)=8(x-4) | | 18x^2+51x+30=0 | | -4(9x-6)= | | 5(x+1)-10=5x+3 | | p/8=p-10/5 | | -4a+13=-43 |

Equations solver categories