35x^2-73x-90=0

Simple and best practice solution for 35x^2-73x-90=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 35x^2-73x-90=0 equation:


Simplifying
35x2 + -73x + -90 = 0

Reorder the terms:
-90 + -73x + 35x2 = 0

Solving
-90 + -73x + 35x2 = 0

Solving for variable 'x'.

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

Divide each side by '35'.
-2.571428571 + -2.085714286x + x2 = 0

Move the constant term to the right:

Add '2.571428571' to each side of the equation.
-2.571428571 + -2.085714286x + 2.571428571 + x2 = 0 + 2.571428571

Reorder the terms:
-2.571428571 + 2.571428571 + -2.085714286x + x2 = 0 + 2.571428571

Combine like terms: -2.571428571 + 2.571428571 = 0.000000000
0.000000000 + -2.085714286x + x2 = 0 + 2.571428571
-2.085714286x + x2 = 0 + 2.571428571

Combine like terms: 0 + 2.571428571 = 2.571428571
-2.085714286x + x2 = 2.571428571

The x term is -2.085714286x.  Take half its coefficient (-1.042857143).
Square it (1.087551021) and add it to both sides.

Add '1.087551021' to each side of the equation.
-2.085714286x + 1.087551021 + x2 = 2.571428571 + 1.087551021

Reorder the terms:
1.087551021 + -2.085714286x + x2 = 2.571428571 + 1.087551021

Combine like terms: 2.571428571 + 1.087551021 = 3.658979592
1.087551021 + -2.085714286x + x2 = 3.658979592

Factor a perfect square on the left side:
(x + -1.042857143)(x + -1.042857143) = 3.658979592

Calculate the square root of the right side: 1.91284594

Break this problem into two subproblems by setting 
(x + -1.042857143) equal to 1.91284594 and -1.91284594.

Subproblem 1

x + -1.042857143 = 1.91284594 Simplifying x + -1.042857143 = 1.91284594 Reorder the terms: -1.042857143 + x = 1.91284594 Solving -1.042857143 + x = 1.91284594 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.042857143' to each side of the equation. -1.042857143 + 1.042857143 + x = 1.91284594 + 1.042857143 Combine like terms: -1.042857143 + 1.042857143 = 0.000000000 0.000000000 + x = 1.91284594 + 1.042857143 x = 1.91284594 + 1.042857143 Combine like terms: 1.91284594 + 1.042857143 = 2.955703083 x = 2.955703083 Simplifying x = 2.955703083

Subproblem 2

x + -1.042857143 = -1.91284594 Simplifying x + -1.042857143 = -1.91284594 Reorder the terms: -1.042857143 + x = -1.91284594 Solving -1.042857143 + x = -1.91284594 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.042857143' to each side of the equation. -1.042857143 + 1.042857143 + x = -1.91284594 + 1.042857143 Combine like terms: -1.042857143 + 1.042857143 = 0.000000000 0.000000000 + x = -1.91284594 + 1.042857143 x = -1.91284594 + 1.042857143 Combine like terms: -1.91284594 + 1.042857143 = -0.869988797 x = -0.869988797 Simplifying x = -0.869988797

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.955703083, -0.869988797}

See similar equations:

| -(6n-3)=-2-7n | | .25y^2-.75y-1=0 | | 13-2y= | | -0.5x-2.05=1.5+-0.25x | | (5+6i)-(3-10i)= | | 5x-6+2x=2x-5 | | 35x^2-73-90=0 | | 11(x-10)=-1(x-10) | | -37-5r=-6(5x+10) | | -8-2(6-d)=48 | | [0.5x(46-29)2]+[0.4x(17-29)2]+[0.1x(-8-29)2]= | | 6xy-10yzx+12zxy= | | 6x=14-3x^2 | | 0.8x+7.3=13.7 | | X^3+4x-144=0 | | (3+7i)(6-2i)= | | 80+64t+-16t^2= | | 7x-4=6(5x+7) | | 32xy+40b-12ay-15ab=0 | | x+3=5x+7-3 | | 7-2(-5-9)+2x=4(2x-1)+3(x+12) | | 3t-7=11 | | (x-8)+x+2x=56 | | 6+5b=5b | | (8(25.875+-0.875y)+7)+(7y-34)=180 | | 4x-10y+8x-3y= | | 0=(.009x^2-.08x+.16) | | 266=2x^2+70x | | 7-3(8t-10)=28 | | (-7m)-12m= | | 5(3x-2)=2 | | 4(x+4)+8=24 |

Equations solver categories