=4x^2-17x-4

Simple and best practice solution for =4x^2-17x-4 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 =4x^2-17x-4 equation:


Simplifying
0 = 4x2 + -17x + -4

Reorder the terms:
0 = -4 + -17x + 4x2

Solving
0 = -4 + -17x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 4 = 4
4 + 17x + -4x2 = -4 + -17x + 4x2 + 4 + 17x + -4x2

Reorder the terms:
4 + 17x + -4x2 = -4 + 4 + -17x + 17x + 4x2 + -4x2

Combine like terms: -4 + 4 = 0
4 + 17x + -4x2 = 0 + -17x + 17x + 4x2 + -4x2
4 + 17x + -4x2 = -17x + 17x + 4x2 + -4x2

Combine like terms: -17x + 17x = 0
4 + 17x + -4x2 = 0 + 4x2 + -4x2
4 + 17x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
4 + 17x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-1 + -4.25x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -4.25x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -4.25x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -4.25x + x2 = 0 + 1
-4.25x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
-4.25x + x2 = 1

The x term is -4.25x.  Take half its coefficient (-2.125).
Square it (4.515625) and add it to both sides.

Add '4.515625' to each side of the equation.
-4.25x + 4.515625 + x2 = 1 + 4.515625

Reorder the terms:
4.515625 + -4.25x + x2 = 1 + 4.515625

Combine like terms: 1 + 4.515625 = 5.515625
4.515625 + -4.25x + x2 = 5.515625

Factor a perfect square on the left side:
(x + -2.125)(x + -2.125) = 5.515625

Calculate the square root of the right side: 2.348536779

Break this problem into two subproblems by setting 
(x + -2.125) equal to 2.348536779 and -2.348536779.

Subproblem 1

x + -2.125 = 2.348536779 Simplifying x + -2.125 = 2.348536779 Reorder the terms: -2.125 + x = 2.348536779 Solving -2.125 + x = 2.348536779 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = 2.348536779 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 2.348536779 + 2.125 x = 2.348536779 + 2.125 Combine like terms: 2.348536779 + 2.125 = 4.473536779 x = 4.473536779 Simplifying x = 4.473536779

Subproblem 2

x + -2.125 = -2.348536779 Simplifying x + -2.125 = -2.348536779 Reorder the terms: -2.125 + x = -2.348536779 Solving -2.125 + x = -2.348536779 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.125' to each side of the equation. -2.125 + 2.125 + x = -2.348536779 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -2.348536779 + 2.125 x = -2.348536779 + 2.125 Combine like terms: -2.348536779 + 2.125 = -0.223536779 x = -0.223536779 Simplifying x = -0.223536779

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.473536779, -0.223536779}

See similar equations:

| 4x+5y=17 | | y/4=(-10) | | -w^2=-w-20 | | 2n(3)=69 | | (9z-u)(5z+4u)= | | 1/4(12n+36)+9n=-3 | | (x^2+9)*(2x-8)=0 | | 2y-13=7y+12 | | 2x(x+5)=(x-7)(x+5) | | (10+z)/(-3)=2 | | 2=10+z/(-3) | | .08x+.09(x+1000)=1620 | | x-2(x+3)+3(x+4)=4(x+5)-5(-x-6) | | 9+3-2+4=6 | | 5(x+2)+2(x-1)=130 | | (5p)/7-18=-43 | | 2(3x+4)+2=6x+10 | | -3x+15=0 | | 138-8x=9x+15 | | 4+4(x-5)=12X | | (x^2)-(14*x)+(3*y)+(55)=0 | | x+5+3x+4=70 | | x^2-14*x+3*y+55=0 | | 4(t-3)+8=4(2t-6) | | 8x^3+40x^2+8x+40=factor | | x^2-13x+16=-7x+2 | | 5x-7=-2x+4 | | x+5+2x-3=17 | | -4(2x+2)=-8 | | x^2-14x+3y+55=0 | | 42w=2(w+7) | | 5x-7=-2+4 |

Equations solver categories