x^2-3x-66=4

Simple and best practice solution for x^2-3x-66=4 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^2-3x-66=4 equation:


Simplifying
x2 + -3x + -66 = 4

Reorder the terms:
-66 + -3x + x2 = 4

Solving
-66 + -3x + x2 = 4

Solving for variable 'x'.

Reorder the terms:
-66 + -4 + -3x + x2 = 4 + -4

Combine like terms: -66 + -4 = -70
-70 + -3x + x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-70 + -3x + x2 = 0

Factor a trinomial.
(-7 + -1x)(10 + -1x) = 0

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {-7, 10}

See similar equations:

| 6-3t=5(2-t) | | 7-(4d+6)-2=6 | | 7-(4d+6)-2=12 | | 8x+3=9+12x | | 4m+20=5m+9 | | 13x^2y+14xy^2+y^3= | | 8x^4+28x^3+20x^2=0 | | 10+6x=4-4X | | y=6x^2-13x-5 | | 3k-9=7+2x-x | | (5v+3d)(5v-3d)= | | 6x^2-2x-4= | | 10-6x=4-4x | | x-(-9)=25 | | c+r+d=200 | | 9y^2-24y+15= | | 7x+11,9=0 | | 3(2a-4)=4(a-1) | | 3x^3+16x^2+21x= | | 6k-3-2k=6+3k-2 | | 3(m-4)2m=m+8 | | 4x^3-4x^2-120x= | | x+3-10x=3(11-3x) | | -10t+3t^2-8= | | 5x-(7x+7)=9 | | w+8-4w-15= | | 16x^2-40xy+25y^2= | | 2m+6=12 | | (9+8)+4=9+(x+4) | | 6x-(2x-5)=2(2x+4) | | -14x^2+59x-35= | | 7+2l-6=-9 |

Equations solver categories