47x^2+15x+30=0

Simple and best practice solution for 47x^2+15x+30=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 47x^2+15x+30=0 equation:


Simplifying
47x2 + 15x + 30 = 0

Reorder the terms:
30 + 15x + 47x2 = 0

Solving
30 + 15x + 47x2 = 0

Solving for variable 'x'.

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

Divide each side by '47'.
0.6382978723 + 0.3191489362x + x2 = 0

Move the constant term to the right:

Add '-0.6382978723' to each side of the equation.
0.6382978723 + 0.3191489362x + -0.6382978723 + x2 = 0 + -0.6382978723

Reorder the terms:
0.6382978723 + -0.6382978723 + 0.3191489362x + x2 = 0 + -0.6382978723

Combine like terms: 0.6382978723 + -0.6382978723 = 0.0000000000
0.0000000000 + 0.3191489362x + x2 = 0 + -0.6382978723
0.3191489362x + x2 = 0 + -0.6382978723

Combine like terms: 0 + -0.6382978723 = -0.6382978723
0.3191489362x + x2 = -0.6382978723

The x term is 0.3191489362x.  Take half its coefficient (0.1595744681).
Square it (0.02546401087) and add it to both sides.

Add '0.02546401087' to each side of the equation.
0.3191489362x + 0.02546401087 + x2 = -0.6382978723 + 0.02546401087

Reorder the terms:
0.02546401087 + 0.3191489362x + x2 = -0.6382978723 + 0.02546401087

Combine like terms: -0.6382978723 + 0.02546401087 = -0.61283386143
0.02546401087 + 0.3191489362x + x2 = -0.61283386143

Factor a perfect square on the left side:
(x + 0.1595744681)(x + 0.1595744681) = -0.61283386143

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0.69+0.25t=2.21t-0.78 | | 126=6x+7(2x-2) | | -77=7v | | 33x+40=130-12x | | 5(y-3)-8=12 | | -77=7 | | x=6(52+40) | | a+7+6b+9a-3b= | | -77=-7 | | 6x+5(2x+12)=172 | | -6+2b=7b-2(1+2b) | | 1.5+e=5.25 | | x=6(p+40) | | 12=10/x | | 2x+3(2x+13)=135 | | 2119=6(p+40) | | a+7+6b+9-4a^2-5a= | | 5.6(10x)=4 | | F=LT/D;L | | -6(3x-7)+3=-18x+45 | | y-11=(3x+4) | | y+11=y | | 64n-36=0 | | (x-2)(x-2)(x-4-2i)(x-4+2i)=0 | | 2x+5(x+8)=108 | | d=70*3.5 | | 372=13k-18 | | 4/5/7 | | 5x+3(6x+8)=185 | | 0.14(y-3)+0.18y=0.02y-2.7 | | 5x+4+6x+9=10x+9 | | y+4=0.6(x+7) |

Equations solver categories