1.5x^2-2.5x+1.25=1

Simple and best practice solution for 1.5x^2-2.5x+1.25=1 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 1.5x^2-2.5x+1.25=1 equation:


Simplifying
1.5x2 + -2.5x + 1.25 = 1

Reorder the terms:
1.25 + -2.5x + 1.5x2 = 1

Solving
1.25 + -2.5x + 1.5x2 = 1

Solving for variable 'x'.

Reorder the terms:
1.25 + -1 + -2.5x + 1.5x2 = 1 + -1

Combine like terms: 1.25 + -1 = 0.25
0.25 + -2.5x + 1.5x2 = 1 + -1

Combine like terms: 1 + -1 = 0
0.25 + -2.5x + 1.5x2 = 0

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

Divide each side by '1.5'.
0.1666666667 + -1.666666667x + x2 = 0

Move the constant term to the right:

Add '-0.1666666667' to each side of the equation.
0.1666666667 + -1.666666667x + -0.1666666667 + x2 = 0 + -0.1666666667

Reorder the terms:
0.1666666667 + -0.1666666667 + -1.666666667x + x2 = 0 + -0.1666666667

Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000
0.0000000000 + -1.666666667x + x2 = 0 + -0.1666666667
-1.666666667x + x2 = 0 + -0.1666666667

Combine like terms: 0 + -0.1666666667 = -0.1666666667
-1.666666667x + x2 = -0.1666666667

The x term is -1.666666667x.  Take half its coefficient (-0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
-1.666666667x + 0.6944444447 + x2 = -0.1666666667 + 0.6944444447

Reorder the terms:
0.6944444447 + -1.666666667x + x2 = -0.1666666667 + 0.6944444447

Combine like terms: -0.1666666667 + 0.6944444447 = 0.527777778
0.6944444447 + -1.666666667x + x2 = 0.527777778

Factor a perfect square on the left side:
(x + -0.8333333335)(x + -0.8333333335) = 0.527777778

Calculate the square root of the right side: 0.726483157

Break this problem into two subproblems by setting 
(x + -0.8333333335) equal to 0.726483157 and -0.726483157.

Subproblem 1

x + -0.8333333335 = 0.726483157 Simplifying x + -0.8333333335 = 0.726483157 Reorder the terms: -0.8333333335 + x = 0.726483157 Solving -0.8333333335 + x = 0.726483157 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + x = 0.726483157 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + x = 0.726483157 + 0.8333333335 x = 0.726483157 + 0.8333333335 Combine like terms: 0.726483157 + 0.8333333335 = 1.5598164905 x = 1.5598164905 Simplifying x = 1.5598164905

Subproblem 2

x + -0.8333333335 = -0.726483157 Simplifying x + -0.8333333335 = -0.726483157 Reorder the terms: -0.8333333335 + x = -0.726483157 Solving -0.8333333335 + x = -0.726483157 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + x = -0.726483157 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + x = -0.726483157 + 0.8333333335 x = -0.726483157 + 0.8333333335 Combine like terms: -0.726483157 + 0.8333333335 = 0.1068501765 x = 0.1068501765 Simplifying x = 0.1068501765

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.5598164905, 0.1068501765}

See similar equations:

| 90/x=20 | | x^4/5=7 | | 2x^3-45x^2+13x-15000= | | x^2+y^2-2x-10y+21=0 | | Log8(12/7) | | (2n+23)+(3n+37)=180 | | 8x^2+64=-72x | | 5n+17=3n+27 | | 7k^2+7k=210 | | 15+y=3x | | (11c+8)(3c-9)=0 | | 6x-29=4x+9 | | (2x/3)-(2x/5)=1/10 | | 16-4a-2b=0 | | Graph-4=8x-y | | 2x+50=6x+2 | | X^2+y^2=65X•y=28 | | Y^2+3y-130=0 | | 6(7+5x)=132 | | 5x^2=-12x+9 | | 10(-4+x)=2y | | -2a+18+5a=3a-6a | | ln(x+5)+ln(x)=ln(4) | | -4x+11x-17=11 | | 4(3+6x)=276 | | 6(3+6x)=276 | | 5(8z-5)-[2(5x-3)+5]= | | -5.9(3x+5)-2.9(2x-4)= | | 5y+36=-3(y+4) | | 6(3x+3)=90 | | 6a^2=-5a | | 6X+-7=2X+5 |

Equations solver categories