4x^2-17x+7=-9+4

Simple and best practice solution for 4x^2-17x+7=-9+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+7=-9+4 equation:


Simplifying
4x2 + -17x + 7 = -9 + 4

Reorder the terms:
7 + -17x + 4x2 = -9 + 4

Combine like terms: -9 + 4 = -5
7 + -17x + 4x2 = -5

Solving
7 + -17x + 4x2 = -5

Solving for variable 'x'.

Reorder the terms:
7 + 5 + -17x + 4x2 = -5 + 5

Combine like terms: 7 + 5 = 12
12 + -17x + 4x2 = -5 + 5

Combine like terms: -5 + 5 = 0
12 + -17x + 4x2 = 0

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

Divide each side by '4'.
3 + -4.25x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -4.25x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -4.25x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -4.25x + x2 = 0 + -3
-4.25x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-4.25x + x2 = -3

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 = -3 + 4.515625

Reorder the terms:
4.515625 + -4.25x + x2 = -3 + 4.515625

Combine like terms: -3 + 4.515625 = 1.515625
4.515625 + -4.25x + x2 = 1.515625

Factor a perfect square on the left side:
(x + -2.125)(x + -2.125) = 1.515625

Calculate the square root of the right side: 1.231107225

Break this problem into two subproblems by setting 
(x + -2.125) equal to 1.231107225 and -1.231107225.

Subproblem 1

x + -2.125 = 1.231107225 Simplifying x + -2.125 = 1.231107225 Reorder the terms: -2.125 + x = 1.231107225 Solving -2.125 + x = 1.231107225 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 = 1.231107225 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = 1.231107225 + 2.125 x = 1.231107225 + 2.125 Combine like terms: 1.231107225 + 2.125 = 3.356107225 x = 3.356107225 Simplifying x = 3.356107225

Subproblem 2

x + -2.125 = -1.231107225 Simplifying x + -2.125 = -1.231107225 Reorder the terms: -2.125 + x = -1.231107225 Solving -2.125 + x = -1.231107225 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 = -1.231107225 + 2.125 Combine like terms: -2.125 + 2.125 = 0.000 0.000 + x = -1.231107225 + 2.125 x = -1.231107225 + 2.125 Combine like terms: -1.231107225 + 2.125 = 0.893892775 x = 0.893892775 Simplifying x = 0.893892775

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.356107225, 0.893892775}

See similar equations:

| =5p | | 8x+3y=42-20x | | 4x^2-28x+98=0 | | x^2-4x-3=-2x+5 | | 6(5+5n)= | | x^2-3x-23=5 | | 4r^2-36=0 | | X-26=-41 | | 11=(-4x-4)+x | | (x-3)(x-1)-48=0 | | 4(x+2)-4x-2=4 | | 6y^2+44y-90=0 | | (-1+45x)+(23x)=135 | | 7s-10=-3 | | 3-4r+2=2r-6(r-3) | | 80=-5(2x-4)-5x | | 2-7r+7=2r-9(r-1) | | -5x-2y=-14 | | 10t-3-t=3+9t | | -2+3x=-y | | -2(x+2)-5=-2x+1 | | -4+x=5 | | 6v=5.4 | | 6.5k+5-5.5k=14 | | x+4y=-26 | | x+1.25=-2.50 | | 5*(2x-3)=x(8-x) | | 12x+11=-13 | | 9.5=x+4.2 | | x(x+6)=24 | | 8x-3(x-5)=30 | | 12x+19=-17 |

Equations solver categories