(8x^2+6x+8)+(9x^2+x+7)=

Simple and best practice solution for (8x^2+6x+8)+(9x^2+x+7)= 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 (8x^2+6x+8)+(9x^2+x+7)= equation:


Simplifying
(8x2 + 6x + 8) + (9x2 + x + 7) = 0

Reorder the terms:
(8 + 6x + 8x2) + (9x2 + x + 7) = 0

Remove parenthesis around (8 + 6x + 8x2)
8 + 6x + 8x2 + (9x2 + x + 7) = 0

Reorder the terms:
8 + 6x + 8x2 + (7 + x + 9x2) = 0

Remove parenthesis around (7 + x + 9x2)
8 + 6x + 8x2 + 7 + x + 9x2 = 0

Reorder the terms:
8 + 7 + 6x + x + 8x2 + 9x2 = 0

Combine like terms: 8 + 7 = 15
15 + 6x + x + 8x2 + 9x2 = 0

Combine like terms: 6x + x = 7x
15 + 7x + 8x2 + 9x2 = 0

Combine like terms: 8x2 + 9x2 = 17x2
15 + 7x + 17x2 = 0

Solving
15 + 7x + 17x2 = 0

Solving for variable 'x'.

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

Divide each side by '17'.
0.8823529412 + 0.4117647059x + x2 = 0

Move the constant term to the right:

Add '-0.8823529412' to each side of the equation.
0.8823529412 + 0.4117647059x + -0.8823529412 + x2 = 0 + -0.8823529412

Reorder the terms:
0.8823529412 + -0.8823529412 + 0.4117647059x + x2 = 0 + -0.8823529412

Combine like terms: 0.8823529412 + -0.8823529412 = 0.0000000000
0.0000000000 + 0.4117647059x + x2 = 0 + -0.8823529412
0.4117647059x + x2 = 0 + -0.8823529412

Combine like terms: 0 + -0.8823529412 = -0.8823529412
0.4117647059x + x2 = -0.8823529412

The x term is 0.4117647059x.  Take half its coefficient (0.205882353).
Square it (0.04238754328) and add it to both sides.

Add '0.04238754328' to each side of the equation.
0.4117647059x + 0.04238754328 + x2 = -0.8823529412 + 0.04238754328

Reorder the terms:
0.04238754328 + 0.4117647059x + x2 = -0.8823529412 + 0.04238754328

Combine like terms: -0.8823529412 + 0.04238754328 = -0.83996539792
0.04238754328 + 0.4117647059x + x2 = -0.83996539792

Factor a perfect square on the left side:
(x + 0.205882353)(x + 0.205882353) = -0.83996539792

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 1.4=q/3-1 | | 2(7m+4n)+6(m+3n)= | | 4c=2x+6 | | u/18-90=-81 | | 3x+13=5x-21 | | -5-4n=-17n+8(-9n+10) | | 5x(7+4)=4(7+1) | | 735.2457=4/3*3.14*r^3 | | x/17=-18 | | 2x-8=9x+10 | | -4x+6=-2-2x | | -d/4-=-22 | | 2(-3a+4)=7(2a+3) | | -18+4(3w-20)=-2(-14w-7) | | -6b=-18 | | H(t)=-0.8t^2+4.48 | | .3x+1=.2x+3 | | 10x+3y=130 | | 1.4h=1.8h+4.8-0.4 | | -192=-16x | | 3m^2=18 | | h(3)=2(3) | | Y=1.6x-7 | | X(2X^2-3)=10 | | -a/3=5 | | h(3)=2 | | -8=104 | | 4^3/4^6 | | -x/6=-100 | | 8y-50=7 | | -34-8v=-6(1+2v) | | p(x)=-x^4+5x^3-(x^2+8) |

Equations solver categories