10x^2-21x-10=0

Simple and best practice solution for 10x^2-21x-10=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 10x^2-21x-10=0 equation:


Simplifying
10x2 + -21x + -10 = 0

Reorder the terms:
-10 + -21x + 10x2 = 0

Solving
-10 + -21x + 10x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-2 + -5x)(5 + -2x) = 0

Subproblem 1

Set the factor '(-2 + -5x)' equal to zero and attempt to solve: Simplifying -2 + -5x = 0 Solving -2 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -5x = 0 + 2 -5x = 0 + 2 Combine like terms: 0 + 2 = 2 -5x = 2 Divide each side by '-5'. x = -0.4 Simplifying x = -0.4

Subproblem 2

Set the factor '(5 + -2x)' equal to zero and attempt to solve: Simplifying 5 + -2x = 0 Solving 5 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x = 0 + -5 -2x = 0 + -5 Combine like terms: 0 + -5 = -5 -2x = -5 Divide each side by '-2'. x = 2.5 Simplifying x = 2.5

Solution

x = {-0.4, 2.5}

See similar equations:

| -10x+-19=19+-8x | | r=3k+3w | | 6y^2+7y=3 | | y^2+12=13y | | 112-5x=2x+7 | | 3a+5=7a-7 | | -9-4x=9-10x | | 7x(3x+5)=0 | | 96-4x=8x+24 | | 5x+6=78-3x | | 4(x+6)=6(x-3) | | 3x+29=13-21 | | t^2-21=0 | | 9x+23=3x-1 | | 2x-1=-3x+2 | | 45+8x=9090 | | x^3-4x^2-15x=0 | | 11x+7=9x+21 | | -3-7y+2-y= | | -14+x=5 | | 7p^2+29p+4=0 | | 9+(-1)= | | 44-3(4-2x)=10(2+3x) | | 3x-5x=4-7 | | 10(2n-5)=2(7n+11) | | 10-(w+4)=-12 | | 44-12+6x=20+6x | | 3x+12=-68-7x | | 1500=b+30+b | | 5x-9y-8x+7y= | | 64+6x=90 | | 2n+4= |

Equations solver categories