4.5x^2+4x-1.5=0

Simple and best practice solution for 4.5x^2+4x-1.5=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 4.5x^2+4x-1.5=0 equation:


Simplifying
4.5x2 + 4x + -1.5 = 0

Reorder the terms:
-1.5 + 4x + 4.5x2 = 0

Solving
-1.5 + 4x + 4.5x2 = 0

Solving for variable 'x'.

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

Divide each side by '4.5'.
-0.3333333333 + 0.8888888889x + x2 = 0

Move the constant term to the right:

Add '0.3333333333' to each side of the equation.
-0.3333333333 + 0.8888888889x + 0.3333333333 + x2 = 0 + 0.3333333333

Reorder the terms:
-0.3333333333 + 0.3333333333 + 0.8888888889x + x2 = 0 + 0.3333333333

Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000
0.0000000000 + 0.8888888889x + x2 = 0 + 0.3333333333
0.8888888889x + x2 = 0 + 0.3333333333

Combine like terms: 0 + 0.3333333333 = 0.3333333333
0.8888888889x + x2 = 0.3333333333

The x term is 0.8888888889x.  Take half its coefficient (0.4444444445).
Square it (0.1975308642) and add it to both sides.

Add '0.1975308642' to each side of the equation.
0.8888888889x + 0.1975308642 + x2 = 0.3333333333 + 0.1975308642

Reorder the terms:
0.1975308642 + 0.8888888889x + x2 = 0.3333333333 + 0.1975308642

Combine like terms: 0.3333333333 + 0.1975308642 = 0.5308641975
0.1975308642 + 0.8888888889x + x2 = 0.5308641975

Factor a perfect square on the left side:
(x + 0.4444444445)(x + 0.4444444445) = 0.5308641975

Calculate the square root of the right side: 0.72860428

Break this problem into two subproblems by setting 
(x + 0.4444444445) equal to 0.72860428 and -0.72860428.

Subproblem 1

x + 0.4444444445 = 0.72860428 Simplifying x + 0.4444444445 = 0.72860428 Reorder the terms: 0.4444444445 + x = 0.72860428 Solving 0.4444444445 + x = 0.72860428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4444444445' to each side of the equation. 0.4444444445 + -0.4444444445 + x = 0.72860428 + -0.4444444445 Combine like terms: 0.4444444445 + -0.4444444445 = 0.0000000000 0.0000000000 + x = 0.72860428 + -0.4444444445 x = 0.72860428 + -0.4444444445 Combine like terms: 0.72860428 + -0.4444444445 = 0.2841598355 x = 0.2841598355 Simplifying x = 0.2841598355

Subproblem 2

x + 0.4444444445 = -0.72860428 Simplifying x + 0.4444444445 = -0.72860428 Reorder the terms: 0.4444444445 + x = -0.72860428 Solving 0.4444444445 + x = -0.72860428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4444444445' to each side of the equation. 0.4444444445 + -0.4444444445 + x = -0.72860428 + -0.4444444445 Combine like terms: 0.4444444445 + -0.4444444445 = 0.0000000000 0.0000000000 + x = -0.72860428 + -0.4444444445 x = -0.72860428 + -0.4444444445 Combine like terms: -0.72860428 + -0.4444444445 = -1.1730487245 x = -1.1730487245 Simplifying x = -1.1730487245

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.2841598355, -1.1730487245}

See similar equations:

| 31+4+-1t=40 | | log(x^2)=log(4) | | 1000x=800x+800 | | log(x^4)=2log(x)+log(4) | | 5x+500=7x+300 | | 6y-2y+14-4y+16=20 | | 4x(1-4)3x(2x+3)=3 | | 3x^2-2x-3.5=0 | | 2x+23=45 | | 3x-=12 | | 12y^4= | | x^2+12x-133=0 | | 2x^2+24x-266=0 | | 2x^2+2x-266=0 | | 2x^2+12+10=0 | | 17x-3(4+5x)=74 | | 4+5(4+5)=56 | | X^2+5xy-24y^2=0 | | X+5(x+2)=130 | | X(x+3)=64 | | Y=0.15x-24 | | 2x^2-x=45 | | 5x^2-6=-10x | | 5x=0.03 | | 13=2x | | 13=x | | 30x-10x=11/3 | | 9-3x+1x-6=1x+1-x | | 9-1x+7(x-3)=7(x-9) | | 2*180-2x+x=304 | | 0=x^2+4x-30 | | 9x-4x=5 |

Equations solver categories