5x^2-14x+49=0

Simple and best practice solution for 5x^2-14x+49=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^2-14x+49=0 equation:


Simplifying
5x2 + -14x + 49 = 0

Reorder the terms:
49 + -14x + 5x2 = 0

Solving
49 + -14x + 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'.
9.8 + -2.8x + x2 = 0

Move the constant term to the right:

Add '-9.8' to each side of the equation.
9.8 + -2.8x + -9.8 + x2 = 0 + -9.8

Reorder the terms:
9.8 + -9.8 + -2.8x + x2 = 0 + -9.8

Combine like terms: 9.8 + -9.8 = 0.0
0.0 + -2.8x + x2 = 0 + -9.8
-2.8x + x2 = 0 + -9.8

Combine like terms: 0 + -9.8 = -9.8
-2.8x + x2 = -9.8

The x term is -2.8x.  Take half its coefficient (-1.4).
Square it (1.96) and add it to both sides.

Add '1.96' to each side of the equation.
-2.8x + 1.96 + x2 = -9.8 + 1.96

Reorder the terms:
1.96 + -2.8x + x2 = -9.8 + 1.96

Combine like terms: -9.8 + 1.96 = -7.84
1.96 + -2.8x + x2 = -7.84

Factor a perfect square on the left side:
(x + -1.4)(x + -1.4) = -7.84

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3=4sin(8x) | | 1000*sinx=9 | | (2x-y)*(2x-y)= | | (6w-13)+(-8w+4)= | | (n-2)*180+360=180*n | | 180*(n-2)+360=180*n | | 4x-3y=-21 | | (9x+8)=(18x+20) | | 11x^2+13x+9=0 | | 4x^3=100x | | x=9*sqrt(x) | | -x^5+3x^4-4x+12=0 | | 3x^4-7x^3+5x^2-7x+2=0 | | 180-10x+10+5x+5+50=180 | | 3(x-1)-(x-2)+5=8 | | P(x)=-6X^3+13x^2-2 | | 3x^4-7x^2+5x^2-7x+2=0 | | 0.75t^2=12t | | 4x^2+50x+34=0 | | 10x+10-180+5x+5+50=180 | | m^4-3m^2+m= | | 4x^2-4x-4=14+8x-2x^2 | | (0.16667x^3)-(0.08836x^2)+(0.002222x)-0.002583=0 | | -15y+4x+11=13y-x | | 18n^2-3n=1 | | x+18+2x=-3-2x-9 | | 14000+160p=24000-200p | | 2e^4x+2=4 | | 4+2.5h=6.5+2 | | (x-2)(x-10)=-3x | | -3+8=-28+9v | | 3+5(x-1)=2(x+1)-1 |

Equations solver categories