5x^2+4x-3=0

Simple and best practice solution for 5x^2+4x-3=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 5x^2+4x-3=0 equation:


Simplifying
5x2 + 4x + -3 = 0

Reorder the terms:
-3 + 4x + 5x2 = 0

Solving
-3 + 4x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-0.6 + 0.8x + x2 = 0

Move the constant term to the right:

Add '0.6' to each side of the equation.
-0.6 + 0.8x + 0.6 + x2 = 0 + 0.6

Reorder the terms:
-0.6 + 0.6 + 0.8x + x2 = 0 + 0.6

Combine like terms: -0.6 + 0.6 = 0.0
0.0 + 0.8x + x2 = 0 + 0.6
0.8x + x2 = 0 + 0.6

Combine like terms: 0 + 0.6 = 0.6
0.8x + x2 = 0.6

The x term is 0.8x.  Take half its coefficient (0.4).
Square it (0.16) and add it to both sides.

Add '0.16' to each side of the equation.
0.8x + 0.16 + x2 = 0.6 + 0.16

Reorder the terms:
0.16 + 0.8x + x2 = 0.6 + 0.16

Combine like terms: 0.6 + 0.16 = 0.76
0.16 + 0.8x + x2 = 0.76

Factor a perfect square on the left side:
(x + 0.4)(x + 0.4) = 0.76

Calculate the square root of the right side: 0.871779789

Break this problem into two subproblems by setting 
(x + 0.4) equal to 0.871779789 and -0.871779789.

Subproblem 1

x + 0.4 = 0.871779789 Simplifying x + 0.4 = 0.871779789 Reorder the terms: 0.4 + x = 0.871779789 Solving 0.4 + x = 0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + x = 0.871779789 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + x = 0.871779789 + -0.4 x = 0.871779789 + -0.4 Combine like terms: 0.871779789 + -0.4 = 0.471779789 x = 0.471779789 Simplifying x = 0.471779789

Subproblem 2

x + 0.4 = -0.871779789 Simplifying x + 0.4 = -0.871779789 Reorder the terms: 0.4 + x = -0.871779789 Solving 0.4 + x = -0.871779789 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.4' to each side of the equation. 0.4 + -0.4 + x = -0.871779789 + -0.4 Combine like terms: 0.4 + -0.4 = 0.0 0.0 + x = -0.871779789 + -0.4 x = -0.871779789 + -0.4 Combine like terms: -0.871779789 + -0.4 = -1.271779789 x = -1.271779789 Simplifying x = -1.271779789

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.471779789, -1.271779789}

See similar equations:

| 5(-9)-4(-11)= | | 5a-3a=8 | | 3r-2=5 | | (5x+15)=(6x-10) | | 0.03(6x+1)=0.18(x+7)-1.23 | | 2x-42=110 | | 2a+7+3a=32 | | 9+m(2)=(5*8)+4 | | 9-(-12)= | | 5y-2-8y=31 | | (5x+3)+(3x+7)=90 | | 325+5.25x+1.19x=2500 | | 5=10s-15 | | v=3+1.5y | | (7x-1)+(3x-9)=180 | | 4b^2-20=0 | | 8w+5=69 | | -5(-3y+2v-6)= | | (7)-(-8)= | | 2(5x-1)-7+1=4(1-x)-3 | | 3x^4-2y^3=-2 | | v-7=11 | | 2w-7w=42-47 | | -8z=-8 | | (4x+17)+(6x+3)=90 | | 3m-6=14 | | 3x+32=11x-85 | | 42=6w | | 9+m=(5*8)+4 | | (10x+5)+(7x)=90 | | 9x-14=6x+1 | | (x+.1)(2x^2)=.000000204 |

Equations solver categories