x*x+2x-5=3

Simple and best practice solution for x*x+2x-5=3 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*x+2x-5=3 equation:


Simplifying
x * x + 2x + -5 = 3

Multiply x * x
x2 + 2x + -5 = 3

Reorder the terms:
-5 + 2x + x2 = 3

Solving
-5 + 2x + x2 = 3

Solving for variable 'x'.

Reorder the terms:
-5 + -3 + 2x + x2 = 3 + -3

Combine like terms: -5 + -3 = -8
-8 + 2x + x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-8 + 2x + x2 = 0

Factor a trinomial.
(-4 + -1x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-4 + -1x)' equal to zero and attempt to solve: Simplifying -4 + -1x = 0 Solving -4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1x = 0 + 4 -1x = 0 + 4 Combine like terms: 0 + 4 = 4 -1x = 4 Divide each side by '-1'. x = -4 Simplifying x = -4

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-4, 2}

See similar equations:

| x*x+4=23 | | 5n+6=5n-11 | | 2x^2-8x=-1 | | 0.7x=.56 | | 7-4x=-7x+16 | | 15s^2-17s-42=0 | | 9.46x=15.3 | | 4x+3=-5+2x+16 | | Y+z=2 | | 1.2a*10a= | | .5x+3=-5 | | 0=42+17s-15s^2 | | 3x^3+x^2-5x-3= | | 16t^2-400=0 | | 2x-y+z=2 | | 33-(x-5)=8x-8 | | 4x^4-63x^2-16=0 | | 7ab*8ab= | | 0.2(x-6)=4.6 | | 3a-3=2a | | -15.9=4.1-5y | | (5k-8)-20=11(2k-3)+3k | | 3x^2+36x+96=0 | | 4y^2-7=y | | 9=x+20 | | (z-3)(z+2)=2z-3 | | (z-3)(z+2)=27-3 | | 5m^2-45= | | 9x=-153 | | -5(t-7)+5=-5 | | 3x-4=7-4x | | 98*8= |

Equations solver categories