x^2-1.5x-1.7=0

Simple and best practice solution for x^2-1.5x-1.7=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 x^2-1.5x-1.7=0 equation:


Simplifying
x2 + -1.5x + -1.7 = 0

Reorder the terms:
-1.7 + -1.5x + x2 = 0

Solving
-1.7 + -1.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1.7' to each side of the equation.
-1.7 + -1.5x + 1.7 + x2 = 0 + 1.7

Reorder the terms:
-1.7 + 1.7 + -1.5x + x2 = 0 + 1.7

Combine like terms: -1.7 + 1.7 = 0.0
0.0 + -1.5x + x2 = 0 + 1.7
-1.5x + x2 = 0 + 1.7

Combine like terms: 0 + 1.7 = 1.7
-1.5x + x2 = 1.7

The x term is -1.5x.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5x + 0.5625 + x2 = 1.7 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 1.7 + 0.5625

Combine like terms: 1.7 + 0.5625 = 2.2625
0.5625 + -1.5x + x2 = 2.2625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 2.2625

Calculate the square root of the right side: 1.504160896

Break this problem into two subproblems by setting 
(x + -0.75) equal to 1.504160896 and -1.504160896.

Subproblem 1

x + -0.75 = 1.504160896 Simplifying x + -0.75 = 1.504160896 Reorder the terms: -0.75 + x = 1.504160896 Solving -0.75 + x = 1.504160896 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = 1.504160896 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 1.504160896 + 0.75 x = 1.504160896 + 0.75 Combine like terms: 1.504160896 + 0.75 = 2.254160896 x = 2.254160896 Simplifying x = 2.254160896

Subproblem 2

x + -0.75 = -1.504160896 Simplifying x + -0.75 = -1.504160896 Reorder the terms: -0.75 + x = -1.504160896 Solving -0.75 + x = -1.504160896 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + x = -1.504160896 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -1.504160896 + 0.75 x = -1.504160896 + 0.75 Combine like terms: -1.504160896 + 0.75 = -0.754160896 x = -0.754160896 Simplifying x = -0.754160896

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.254160896, -0.754160896}

See similar equations:

| 12=9(5+x^2) | | 2(5f-11)=28 | | 4x+1+2x= | | 144-6x=2x+10 | | n=4(-5)-3 | | n=4(-6)-3 | | -3m+7=31 | | n=4(-7)-3 | | n=4(-8)-3 | | 1.6x-7=8 | | 7x^2-15x+54=0 | | (x+3)(x+4)=48 | | 3.5x-0.5x=0.2(3-x) | | .6x-7=8 | | 9y-6.9=6y | | 32=4y+8 | | 5x-17=-7+7 | | n=4(-1)-3 | | 8=28a | | n=4(-2)-3 | | n=4(-3)-3 | | 18=4m+6 | | n=4(-4)-3 | | 7x+3(5-2x)ifx=2 | | 3=4+k/9 | | X^4-9x^2-112=0 | | 8x^2-68x=0 | | 2(x+3)=4(x-1) | | 0.8(x-2)+1.3=0.7x+0.5x | | x^3-4x^2+8x-4=0 | | 54-3x=6x+24 | | (2x-4x+10)+(3x-2x+12)= |

Equations solver categories