4.9x^2-6x+1.25=0

Simple and best practice solution for 4.9x^2-6x+1.25=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 4.9x^2-6x+1.25=0 equation:


Simplifying
4.9x2 + -6x + 1.25 = 0

Reorder the terms:
1.25 + -6x + 4.9x2 = 0

Solving
1.25 + -6x + 4.9x2 = 0

Solving for variable 'x'.

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

Divide each side by '4.9'.
0.2551020408 + -1.224489796x + x2 = 0

Move the constant term to the right:

Add '-0.2551020408' to each side of the equation.
0.2551020408 + -1.224489796x + -0.2551020408 + x2 = 0 + -0.2551020408

Reorder the terms:
0.2551020408 + -0.2551020408 + -1.224489796x + x2 = 0 + -0.2551020408

Combine like terms: 0.2551020408 + -0.2551020408 = 0.0000000000
0.0000000000 + -1.224489796x + x2 = 0 + -0.2551020408
-1.224489796x + x2 = 0 + -0.2551020408

Combine like terms: 0 + -0.2551020408 = -0.2551020408
-1.224489796x + x2 = -0.2551020408

The x term is -1.224489796x.  Take half its coefficient (-0.612244898).
Square it (0.3748438151) and add it to both sides.

Add '0.3748438151' to each side of the equation.
-1.224489796x + 0.3748438151 + x2 = -0.2551020408 + 0.3748438151

Reorder the terms:
0.3748438151 + -1.224489796x + x2 = -0.2551020408 + 0.3748438151

Combine like terms: -0.2551020408 + 0.3748438151 = 0.1197417743
0.3748438151 + -1.224489796x + x2 = 0.1197417743

Factor a perfect square on the left side:
(x + -0.612244898)(x + -0.612244898) = 0.1197417743

Calculate the square root of the right side: 0.346037244

Break this problem into two subproblems by setting 
(x + -0.612244898) equal to 0.346037244 and -0.346037244.

Subproblem 1

x + -0.612244898 = 0.346037244 Simplifying x + -0.612244898 = 0.346037244 Reorder the terms: -0.612244898 + x = 0.346037244 Solving -0.612244898 + x = 0.346037244 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.612244898' to each side of the equation. -0.612244898 + 0.612244898 + x = 0.346037244 + 0.612244898 Combine like terms: -0.612244898 + 0.612244898 = 0.000000000 0.000000000 + x = 0.346037244 + 0.612244898 x = 0.346037244 + 0.612244898 Combine like terms: 0.346037244 + 0.612244898 = 0.958282142 x = 0.958282142 Simplifying x = 0.958282142

Subproblem 2

x + -0.612244898 = -0.346037244 Simplifying x + -0.612244898 = -0.346037244 Reorder the terms: -0.612244898 + x = -0.346037244 Solving -0.612244898 + x = -0.346037244 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.612244898' to each side of the equation. -0.612244898 + 0.612244898 + x = -0.346037244 + 0.612244898 Combine like terms: -0.612244898 + 0.612244898 = 0.000000000 0.000000000 + x = -0.346037244 + 0.612244898 x = -0.346037244 + 0.612244898 Combine like terms: -0.346037244 + 0.612244898 = 0.266207654 x = 0.266207654 Simplifying x = 0.266207654

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.958282142, 0.266207654}

See similar equations:

| 4.9x^2+6x-1.25=0 | | x-18y+32=0 | | x^3+12x^2+49x+78=0 | | 4x-y+8z=10 | | 4x^6(3x+9)= | | 3-(x+4)=7x+8 | | 0.3x+x=115 | | 2-8x=-46 | | 2p+5(1-p)=4p+2(1-p) | | 9x+2=3x+23 | | (x+2)(x+5)-(8x-3)(x+9)= | | 16x-13x+240000=918864 | | 16x-13x+240000=1000000 | | 16x-13x+240000=100000 | | 16x-13x+240000=10000 | | 7(0.25+1)=9-0.25 | | 7a+(2b-c)-3d=0 | | (3x+5)(-7x-4)= | | 37=5u+7 | | 5(4a-3b)+4(2a-2b)= | | 5=3x-38 | | 2x+21=-5x+14 | | 16x-13x+240000=0 | | (2a+5)(a+8)=0 | | 9x-17=3x+5 | | 9x-17=3x+15 | | 2u-28=5u | | 9+3m-7+4m= | | 2n-1.5=0.75 | | -12+3x=-9 | | 32=9y-4 | | x-x(0.1)=225 |

Equations solver categories