15x^2+16x+7=0

Simple and best practice solution for 15x^2+16x+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 15x^2+16x+7=0 equation:


Simplifying
15x2 + 16x + 7 = 0

Reorder the terms:
7 + 16x + 15x2 = 0

Solving
7 + 16x + 15x2 = 0

Solving for variable 'x'.

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

Divide each side by '15'.
0.4666666667 + 1.066666667x + x2 = 0

Move the constant term to the right:

Add '-0.4666666667' to each side of the equation.
0.4666666667 + 1.066666667x + -0.4666666667 + x2 = 0 + -0.4666666667

Reorder the terms:
0.4666666667 + -0.4666666667 + 1.066666667x + x2 = 0 + -0.4666666667

Combine like terms: 0.4666666667 + -0.4666666667 = 0.0000000000
0.0000000000 + 1.066666667x + x2 = 0 + -0.4666666667
1.066666667x + x2 = 0 + -0.4666666667

Combine like terms: 0 + -0.4666666667 = -0.4666666667
1.066666667x + x2 = -0.4666666667

The x term is 1.066666667x.  Take half its coefficient (0.5333333335).
Square it (0.2844444446) and add it to both sides.

Add '0.2844444446' to each side of the equation.
1.066666667x + 0.2844444446 + x2 = -0.4666666667 + 0.2844444446

Reorder the terms:
0.2844444446 + 1.066666667x + x2 = -0.4666666667 + 0.2844444446

Combine like terms: -0.4666666667 + 0.2844444446 = -0.1822222221
0.2844444446 + 1.066666667x + x2 = -0.1822222221

Factor a perfect square on the left side:
(x + 0.5333333335)(x + 0.5333333335) = -0.1822222221

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 33-(x+5)=8x-8 | | d=18+-27 | | (4b+3c)(5b+2c)=0 | | 200=2x+100 | | 2x+5x-9=5 | | 5(d+1)-3=32 | | 5x+4-4X=12whatisx | | -3(x-9)-3(3x-5)-7x= | | 0.5(2x-6)+3=8(0.3x-5) | | 3v^2-1v=10 | | (13-2)2+(12-14*2)=a | | -9+5-3= | | 6y-8-3y+6=0 | | X^3-3x=1095 | | 2w-5=9(w-1) | | 11x-4=4(3x-2) | | xy-x^6y^6=0 | | 0.5x+2x+x+45=150 | | -5(r+9)=-96 | | 37.77=8g+3.85 | | 9x-7=23x-15 | | v+914=-21 | | 11x-4=4(3x+2) | | 15x-9-7=x+5 | | z+15+5z+9=180 | | 3x^2-2x-10=7 | | 6x+7+4x+5=90 | | 3X-16=2X+18 | | x^2+6x-8=3x-7 | | 4d-36-24d=2-16-4d | | 28=-4y+2(y+4) | | 6-2(x-2)=3(x+3)-9 |

Equations solver categories