-4x^2+7x+10=0

Simple and best practice solution for -4x^2+7x+10=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 -4x^2+7x+10=0 equation:


Simplifying
-4x2 + 7x + 10 = 0

Reorder the terms:
10 + 7x + -4x2 = 0

Solving
10 + 7x + -4x2 = 0

Solving for variable 'x'.

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

Divide each side by '-4'.
-2.5 + -1.75x + x2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + -1.75x + 2.5 + x2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + -1.75x + x2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -1.75x + x2 = 0 + 2.5
-1.75x + x2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
-1.75x + x2 = 2.5

The x term is -1.75x.  Take half its coefficient (-0.875).
Square it (0.765625) and add it to both sides.

Add '0.765625' to each side of the equation.
-1.75x + 0.765625 + x2 = 2.5 + 0.765625

Reorder the terms:
0.765625 + -1.75x + x2 = 2.5 + 0.765625

Combine like terms: 2.5 + 0.765625 = 3.265625
0.765625 + -1.75x + x2 = 3.265625

Factor a perfect square on the left side:
(x + -0.875)(x + -0.875) = 3.265625

Calculate the square root of the right side: 1.807104037

Break this problem into two subproblems by setting 
(x + -0.875) equal to 1.807104037 and -1.807104037.

Subproblem 1

x + -0.875 = 1.807104037 Simplifying x + -0.875 = 1.807104037 Reorder the terms: -0.875 + x = 1.807104037 Solving -0.875 + x = 1.807104037 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = 1.807104037 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = 1.807104037 + 0.875 x = 1.807104037 + 0.875 Combine like terms: 1.807104037 + 0.875 = 2.682104037 x = 2.682104037 Simplifying x = 2.682104037

Subproblem 2

x + -0.875 = -1.807104037 Simplifying x + -0.875 = -1.807104037 Reorder the terms: -0.875 + x = -1.807104037 Solving -0.875 + x = -1.807104037 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.875' to each side of the equation. -0.875 + 0.875 + x = -1.807104037 + 0.875 Combine like terms: -0.875 + 0.875 = 0.000 0.000 + x = -1.807104037 + 0.875 x = -1.807104037 + 0.875 Combine like terms: -1.807104037 + 0.875 = -0.932104037 x = -0.932104037 Simplifying x = -0.932104037

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.682104037, -0.932104037}

See similar equations:

| 4f-9=14 | | 8a-4(-5a+7)=-a | | 6(5-8w)+17=-241 | | 17x-9(x+40)=3x-26 | | 1/2=0/5 | | 2x=61 | | y^2+14y+4x+45=0Grafico | | 5y-4=150 | | 18(4-a)+12a=36 | | log(12/x)=1,08 | | 24(4-m)+7=130 | | 9h-23=70 | | t*4-3=13 | | a-3b=-11 | | -4+3w=14 | | 1.25/2=x/100 | | 8r^2-88r+192=0 | | 2a+10-6a= | | 5(10x+50)=750 | | 3n(6n+4)=0 | | -16x^2+32x+192=0 | | 1.75/2=x/100 | | -8r-2+7=23 | | 9a-32.2-a=-5.9 | | 1.5/2=x/100 | | 20-(x-4)=3x | | 3t^3+2t-48t-32=0 | | 4(4-2u)+14=14 | | 4y+3(y-4)=-26 | | 8(5-9m)+14=-666 | | 3(v+5)+8v=4 | | x^2+x^2y+8x^2+3x= |

Equations solver categories