-4.9x^2+30x+1.4=1.7

Simple and best practice solution for -4.9x^2+30x+1.4=1.7 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+30x+1.4=1.7 equation:


Simplifying
-4.9x2 + 30x + 1.4 = 1.7

Reorder the terms:
1.4 + 30x + -4.9x2 = 1.7

Solving
1.4 + 30x + -4.9x2 = 1.7

Solving for variable 'x'.

Reorder the terms:
1.4 + -1.7 + 30x + -4.9x2 = 1.7 + -1.7

Combine like terms: 1.4 + -1.7 = -0.3
-0.3 + 30x + -4.9x2 = 1.7 + -1.7

Combine like terms: 1.7 + -1.7 = 0.0
-0.3 + 30x + -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'.
0.0612244898 + -6.12244898x + x2 = 0

Move the constant term to the right:

Add '-0.0612244898' to each side of the equation.
0.0612244898 + -6.12244898x + -0.0612244898 + x2 = 0 + -0.0612244898

Reorder the terms:
0.0612244898 + -0.0612244898 + -6.12244898x + x2 = 0 + -0.0612244898

Combine like terms: 0.0612244898 + -0.0612244898 = 0.0000000000
0.0000000000 + -6.12244898x + x2 = 0 + -0.0612244898
-6.12244898x + x2 = 0 + -0.0612244898

Combine like terms: 0 + -0.0612244898 = -0.0612244898
-6.12244898x + x2 = -0.0612244898

The x term is -6.12244898x.  Take half its coefficient (-3.06122449).
Square it (9.371095378) and add it to both sides.

Add '9.371095378' to each side of the equation.
-6.12244898x + 9.371095378 + x2 = -0.0612244898 + 9.371095378

Reorder the terms:
9.371095378 + -6.12244898x + x2 = -0.0612244898 + 9.371095378

Combine like terms: -0.0612244898 + 9.371095378 = 9.3098708882
9.371095378 + -6.12244898x + x2 = 9.3098708882

Factor a perfect square on the left side:
(x + -3.06122449)(x + -3.06122449) = 9.3098708882

Calculate the square root of the right side: 3.051208103

Break this problem into two subproblems by setting 
(x + -3.06122449) equal to 3.051208103 and -3.051208103.

Subproblem 1

x + -3.06122449 = 3.051208103 Simplifying x + -3.06122449 = 3.051208103 Reorder the terms: -3.06122449 + x = 3.051208103 Solving -3.06122449 + x = 3.051208103 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.06122449' to each side of the equation. -3.06122449 + 3.06122449 + x = 3.051208103 + 3.06122449 Combine like terms: -3.06122449 + 3.06122449 = 0.00000000 0.00000000 + x = 3.051208103 + 3.06122449 x = 3.051208103 + 3.06122449 Combine like terms: 3.051208103 + 3.06122449 = 6.112432593 x = 6.112432593 Simplifying x = 6.112432593

Subproblem 2

x + -3.06122449 = -3.051208103 Simplifying x + -3.06122449 = -3.051208103 Reorder the terms: -3.06122449 + x = -3.051208103 Solving -3.06122449 + x = -3.051208103 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.06122449' to each side of the equation. -3.06122449 + 3.06122449 + x = -3.051208103 + 3.06122449 Combine like terms: -3.06122449 + 3.06122449 = 0.00000000 0.00000000 + x = -3.051208103 + 3.06122449 x = -3.051208103 + 3.06122449 Combine like terms: -3.051208103 + 3.06122449 = 0.010016387 x = 0.010016387 Simplifying x = 0.010016387

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.112432593, 0.010016387}

See similar equations:

| -2(4s-1)-2=-2(9s+4)-3 | | 17x-9(1+4)=3x-26 | | A^2=100.25 | | 29=29+t | | 5d-6d+3-1+2d= | | 2.13=a/740 | | 10-3v=1 | | 16x+3=-8x-8 | | q=(3-8x)/-5 | | 3x-7+2x=8 | | 7x+2x+5+1-x= | | 12500=-48n+21000 | | 5y-(-1+0y)=-(y+1)+20 | | 2(x-3)+6x=5(x+4)-11 | | 3x=-19+2y | | x^3/2-3x^1/2=0 | | 10x-10=4-2x | | (3-8x)/-5 | | x^4+9x^2-5x^3-45x= | | 2n-2(4n+5)=-6 | | 0.12y+0.04(y+5000)=680 | | 5x=7(7x+6) | | 2a+3a-2b= | | (64a)2/3 | | -p/12=8 | | 9x+4=5x-4 | | 3[4(x-3)+1]=0 | | -9/-4a=36 | | x=24+7 | | 2c+2bc+bc-3c= | | 7-(x-3)=2x+5-6x | | 7a+12a+10a+7a=360 |

Equations solver categories