4.9x^2+330x-1320=0

Simple and best practice solution for 4.9x^2+330x-1320=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+330x-1320=0 equation:


Simplifying
4.9x2 + 330x + -1320 = 0

Reorder the terms:
-1320 + 330x + 4.9x2 = 0

Solving
-1320 + 330x + 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'.
-269.3877551 + 67.34693878x + x2 = 0

Move the constant term to the right:

Add '269.3877551' to each side of the equation.
-269.3877551 + 67.34693878x + 269.3877551 + x2 = 0 + 269.3877551

Reorder the terms:
-269.3877551 + 269.3877551 + 67.34693878x + x2 = 0 + 269.3877551

Combine like terms: -269.3877551 + 269.3877551 = 0.0000000
0.0000000 + 67.34693878x + x2 = 0 + 269.3877551
67.34693878x + x2 = 0 + 269.3877551

Combine like terms: 0 + 269.3877551 = 269.3877551
67.34693878x + x2 = 269.3877551

The x term is 67.34693878x.  Take half its coefficient (33.67346939).
Square it (1133.902541) and add it to both sides.

Add '1133.902541' to each side of the equation.
67.34693878x + 1133.902541 + x2 = 269.3877551 + 1133.902541

Reorder the terms:
1133.902541 + 67.34693878x + x2 = 269.3877551 + 1133.902541

Combine like terms: 269.3877551 + 1133.902541 = 1403.2902961
1133.902541 + 67.34693878x + x2 = 1403.2902961

Factor a perfect square on the left side:
(x + 33.67346939)(x + 33.67346939) = 1403.2902961

Calculate the square root of the right side: 37.460516495

Break this problem into two subproblems by setting 
(x + 33.67346939) equal to 37.460516495 and -37.460516495.

Subproblem 1

x + 33.67346939 = 37.460516495 Simplifying x + 33.67346939 = 37.460516495 Reorder the terms: 33.67346939 + x = 37.460516495 Solving 33.67346939 + x = 37.460516495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-33.67346939' to each side of the equation. 33.67346939 + -33.67346939 + x = 37.460516495 + -33.67346939 Combine like terms: 33.67346939 + -33.67346939 = 0.00000000 0.00000000 + x = 37.460516495 + -33.67346939 x = 37.460516495 + -33.67346939 Combine like terms: 37.460516495 + -33.67346939 = 3.787047105 x = 3.787047105 Simplifying x = 3.787047105

Subproblem 2

x + 33.67346939 = -37.460516495 Simplifying x + 33.67346939 = -37.460516495 Reorder the terms: 33.67346939 + x = -37.460516495 Solving 33.67346939 + x = -37.460516495 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-33.67346939' to each side of the equation. 33.67346939 + -33.67346939 + x = -37.460516495 + -33.67346939 Combine like terms: 33.67346939 + -33.67346939 = 0.00000000 0.00000000 + x = -37.460516495 + -33.67346939 x = -37.460516495 + -33.67346939 Combine like terms: -37.460516495 + -33.67346939 = -71.133985885 x = -71.133985885 Simplifying x = -71.133985885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.787047105, -71.133985885}

See similar equations:

| 43=4x-17 | | 4.1m-1.1=-7.7+6.3m | | 5(c-5)=6(c-8) | | 3.5(x-14)=1.3x-3.14 | | 5(2x-4)=(4x+6) | | 3(6y-4)=6y | | 3x(x+8)=2x+16 | | -8y+7x+6y+7x= | | (3x^2)+(2y^2)dx+((4xy+6y^2)dy)=0 | | 3b^3-5b^2+2rs-s=0 | | 3m-19=-14+8m | | 5v+3-4(-3v-1)=3(v-1) | | 8+2(2y-3)=-5(4y-2)+8y | | n+n+1+n+2+n+3=-2 | | 7(v-3)-5=-2(-3v+6)-5v | | 3y-18=4y-8 | | 4(y+7)=6y+20 | | 12=5x(1-x)21 | | 9*70=5f-160 | | 23=2y-5 | | 4(x+2)+2x=6+6 | | 6x*6+5(2x*2-x)-2x= | | 10-2x=3x-x+6 | | 10-2(12-2-4)= | | x+x+5=605 | | 10-2(12-2a)= | | 5+3m-4=9m+10-3m | | 15-(6--4)= | | 4x-2=14-3x | | 2x+2-4x=6+2x | | 8+3p-3=8p+5-3p | | 7r-5r+4=5r-r |

Equations solver categories