5x*5x-15x+7=0

Simple and best practice solution for 5x*5x-15x+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 5x*5x-15x+7=0 equation:


Simplifying
5x * 5x + -15x + 7 = 0

Reorder the terms for easier multiplication:
5 * 5x * x + -15x + 7 = 0

Multiply 5 * 5
25x * x + -15x + 7 = 0

Multiply x * x
25x2 + -15x + 7 = 0

Reorder the terms:
7 + -15x + 25x2 = 0

Solving
7 + -15x + 25x2 = 0

Solving for variable 'x'.

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

Divide each side by '25'.
0.28 + -0.6x + x2 = 0

Move the constant term to the right:

Add '-0.28' to each side of the equation.
0.28 + -0.6x + -0.28 + x2 = 0 + -0.28

Reorder the terms:
0.28 + -0.28 + -0.6x + x2 = 0 + -0.28

Combine like terms: 0.28 + -0.28 = 0.00
0.00 + -0.6x + x2 = 0 + -0.28
-0.6x + x2 = 0 + -0.28

Combine like terms: 0 + -0.28 = -0.28
-0.6x + x2 = -0.28

The x term is -0.6x.  Take half its coefficient (-0.3).
Square it (0.09) and add it to both sides.

Add '0.09' to each side of the equation.
-0.6x + 0.09 + x2 = -0.28 + 0.09

Reorder the terms:
0.09 + -0.6x + x2 = -0.28 + 0.09

Combine like terms: -0.28 + 0.09 = -0.19
0.09 + -0.6x + x2 = -0.19

Factor a perfect square on the left side:
(x + -0.3)(x + -0.3) = -0.19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5(k+11)+2(k-3)-7=2(k-4) | | -10+z-1=7z-t | | 6-2t=4t+2 | | 12m-14m+4.2=12 | | 16+8-2x-14+x+9+x-4=10 | | X-18=3(2x+9) | | -3(5x+24)+2=2(3-2x)-4 | | 7x-8+6=3 | | 5(2x+1)=5x-20 | | 6x-3x+27=9+6x-2 | | -3(5x+24)+2=(3-2x)-4 | | 3x+4(6x-2)= | | x^2+6x=x^2-2x-10 | | 6x+5+2x-11=90e | | -5x+14=-2x+17 | | 2x*2x=3-8x | | 5(1-3(-6))-10=-2(6(-6)-5)+3 | | 10-2x=6x+90 | | (x+2)(x+2)+5=(x+3)(x+3) | | x-9=2x+2 | | T=9+7n | | x(x+3)=x^2-2(x-5) | | 28x-6=6x+3 | | -3x-1x-2x-6x-5= | | 2y+3x+16=60 | | -v+5+6v=1+5v+e | | 2x^2+12x=50 | | 5(1-3x)-10=-2(6x-5)+3 | | 5(1-3)x-10=-2(6x-5)+3 | | x^3-53=163 | | 3+4x=-2x+51 | | 9x-33=-89 |

Equations solver categories