(x^2-4)+(x^2+30x-14)=90

Simple and best practice solution for (x^2-4)+(x^2+30x-14)=90 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 (x^2-4)+(x^2+30x-14)=90 equation:


Simplifying
(x2 + -4) + (x2 + 30x + -14) = 90

Reorder the terms:
(-4 + x2) + (x2 + 30x + -14) = 90

Remove parenthesis around (-4 + x2)
-4 + x2 + (x2 + 30x + -14) = 90

Reorder the terms:
-4 + x2 + (-14 + 30x + x2) = 90

Remove parenthesis around (-14 + 30x + x2)
-4 + x2 + -14 + 30x + x2 = 90

Reorder the terms:
-4 + -14 + 30x + x2 + x2 = 90

Combine like terms: -4 + -14 = -18
-18 + 30x + x2 + x2 = 90

Combine like terms: x2 + x2 = 2x2
-18 + 30x + 2x2 = 90

Solving
-18 + 30x + 2x2 = 90

Solving for variable 'x'.

Reorder the terms:
-18 + -90 + 30x + 2x2 = 90 + -90

Combine like terms: -18 + -90 = -108
-108 + 30x + 2x2 = 90 + -90

Combine like terms: 90 + -90 = 0
-108 + 30x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-54 + 15x + x2) = 0

Factor a trinomial.
2((-18 + -1x)(3 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-18 + -1x)' equal to zero and attempt to solve: Simplifying -18 + -1x = 0 Solving -18 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + -1x = 0 + 18 Combine like terms: -18 + 18 = 0 0 + -1x = 0 + 18 -1x = 0 + 18 Combine like terms: 0 + 18 = 18 -1x = 18 Divide each side by '-1'. x = -18 Simplifying x = -18

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-18, 3}

See similar equations:

| 88-2x=92+22 | | n^2(2n+1)-6(2n+1)= | | 5/3=t-7/3 | | y+6.2=3.8 | | 4p-p=-9 | | 9a-8a=7-5 | | 8-2s+4=6-s | | v+1/3=4/3 | | 8-2a+4=6-s | | z-3/2=5/2 | | 4(b-4)=8 | | -4/3y=1 | | -m+3=11 | | 6n-6n=6 | | 36x^3+24x^2+x-1=0 | | 2=-2t | | 4/3=-8t | | 4x+6y-9z=20 | | 4/3=8/7x | | 300-273.15= | | 28x^3+51x^2+11= | | 7x=4(X-12) | | 1/2=5/8w | | X+1=x+2p | | 1+13=-8u-6u | | 2ln(3x+6)=18 | | -11-6= | | 19=-8-9y | | 2400-5x=3600-3x | | -5(3h+2)=-9h-34 | | 15-2c=-11 | | -16t^2+28t+8= |

Equations solver categories