-4.9x^2+19.6x=14.7

Simple and best practice solution for -4.9x^2+19.6x=14.7 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 -4.9x^2+19.6x=14.7 equation:


Simplifying
-4.9x2 + 19.6x = 14.7

Reorder the terms:
19.6x + -4.9x2 = 14.7

Solving
19.6x + -4.9x2 = 14.7

Solving for variable 'x'.

Reorder the terms:
-14.7 + 19.6x + -4.9x2 = 14.7 + -14.7

Combine like terms: 14.7 + -14.7 = 0.0
-14.7 + 19.6x + -4.9x2 = 0.0

Begin completing the square.  Divide all terms by
-4.9 the coefficient of the squared term: 

Divide each side by '-4.9'.
3 + -4x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -4x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -4x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4x + x2 = 0 + -3
-4x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-4x + x2 = -3

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -3 + 4

Reorder the terms:
4 + -4x + x2 = -3 + 4

Combine like terms: -3 + 4 = 1
4 + -4x + x2 = 1

Factor a perfect square on the left side:
(x + -2)(x + -2) = 1

Calculate the square root of the right side: 1

Break this problem into two subproblems by setting 
(x + -2) equal to 1 and -1.

Subproblem 1

x + -2 = 1 Simplifying x + -2 = 1 Reorder the terms: -2 + x = 1 Solving -2 + x = 1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1 + 2 x = 1 + 2 Combine like terms: 1 + 2 = 3 x = 3 Simplifying x = 3

Subproblem 2

x + -2 = -1 Simplifying x + -2 = -1 Reorder the terms: -2 + x = -1 Solving -2 + x = -1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1 + 2 x = -1 + 2 Combine like terms: -1 + 2 = 1 x = 1 Simplifying x = 1

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3, 1}

See similar equations:

| 6x-12=x+23 | | 45k=9k+8 | | 4s+10t=0 | | 6-2x=-x-2 | | -0.5(32)*x^2+12x+22=23.76 | | 6(v+3)-2v=2(2v+3)-10 | | -2x+4=-4x+16 | | -16-n=4n-1 | | 1x+3x-6=-4-2x-2 | | 2y+5=y+9 | | -16-n=4-1 | | 3(6-2x)-8(x+4)=0 | | 2x(-4+8)-5=0 | | 2x-14=8x+9 | | 1+7x^2-6x^2+4= | | 16+x+2x=-2x+3x | | x^6-4x^4-4x^2+16=0 | | A=h(a+b)solve(b) | | -6+5v+5v=-5+10v | | X=11.1x | | -6+5v+5v=-5+10 | | 9k+8=45k | | 80=6x+6x+8 | | 8-3n=8-3n | | 4x+15=6x-7 | | 12c-2(c-13)=11-5(2c-7) | | 3cos^2+5cosx=0 | | -8-5b=-4-3b | | 6y-2+8y+14+138=180 | | 3(9-b)-45=21b-6(3+4b) | | Y=x^4-5x^3+2x^2+6x-1 | | 1+7a=7a+1 |

Equations solver categories