2x^2+7x+19=0

Simple and best practice solution for 2x^2+7x+19=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 2x^2+7x+19=0 equation:


Simplifying
2x2 + 7x + 19 = 0

Reorder the terms:
19 + 7x + 2x2 = 0

Solving
19 + 7x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
9.5 + 3.5x + x2 = 0

Move the constant term to the right:

Add '-9.5' to each side of the equation.
9.5 + 3.5x + -9.5 + x2 = 0 + -9.5

Reorder the terms:
9.5 + -9.5 + 3.5x + x2 = 0 + -9.5

Combine like terms: 9.5 + -9.5 = 0.0
0.0 + 3.5x + x2 = 0 + -9.5
3.5x + x2 = 0 + -9.5

Combine like terms: 0 + -9.5 = -9.5
3.5x + x2 = -9.5

The x term is 3.5x.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5x + 3.0625 + x2 = -9.5 + 3.0625

Reorder the terms:
3.0625 + 3.5x + x2 = -9.5 + 3.0625

Combine like terms: -9.5 + 3.0625 = -6.4375
3.0625 + 3.5x + x2 = -6.4375

Factor a perfect square on the left side:
(x + 1.75)(x + 1.75) = -6.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7+8x=14+x | | 3h-6=2(5-2h) | | x^0.5-x/4 | | 4x-16x^3=0 | | 4p-37/5 | | 5x+9=-4x-36 | | 3(x+4)+2(x-1)=0 | | x=5y+31 | | 6-5x=(2x-6) | | 20-4x=8-8x | | 2(x-12)+(x+11)= | | 5x+10=-56-6x | | -x-4=-2 | | 5x(299-1)=4(54+3) | | (15-x)/4 | | 5(5x-3)+4=-10 | | 5x+5y+7z-3x+4z-8y= | | 2x+3+x=2x-19 | | 2x+11=-3x-1 | | 3x^2-12t^2=0 | | 3mx-2m+4=(2m+1)x^2 | | -3a(a^2-3a-2)= | | 4x^2+4y^2-100=0 | | 5x+25=4x-9 | | 11w=5170 | | 3s/2s | | -19+(-16)+(-12)+(-10)+18+(-2)= | | -20+4-8= | | -6+(-59)+72+(-55)= | | sin(x-20)=0.3 | | 2x(3-1)+3(2x-3)=15 | | 2x^2-10x=y |

Equations solver categories