27-5x2-4x=2x+23-7x2

Simple and best practice solution for 27-5x2-4x=2x+23-7x2 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 27-5x2-4x=2x+23-7x2 equation:



27-5x^2-4x=2x+23-7x^2
We move all terms to the left:
27-5x^2-4x-(2x+23-7x^2)=0
We get rid of parentheses
-5x^2+7x^2-2x-4x-23+27=0
We add all the numbers together, and all the variables
2x^2-6x+4=0
a = 2; b = -6; c = +4;
Δ = b2-4ac
Δ = -62-4·2·4
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2}{2*2}=\frac{4}{4} =1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2}{2*2}=\frac{8}{4} =2 $

See similar equations:

| 5(x+8)-7=3(4x+6) | | 1.5x+44=10 | | 9(x−3=)45 | | 216+(34-x)=224 | | 16=(x^2-9) | | x^2-3x+5=23 | | 23=x^2-3x+5 | | 218=3-x | | -u+53=259 | | 290-u=186 | | 155=-w+201 | | (-6+7x)+55+75=180 | | 16=x/3+11 | | 5x+8-9x=0 | | 20n−18n=14 | | x÷4×6=180 | | 3(5c–4)=8c+2 | | X/(2x+1)=16/40 | | 6z-7=-42 | | 2x=11=7x+16 | | 30/70=w/1.20 | | 3(2–5n)–2(1–6n)=1 | | 20/70=w/2.10 | | 0.5n-2.1=-4.2 | | 127=(10x-3) | | 6x+7=2x+5=0.5 | | -0.65x+0.35x=8.4 | | F(x)=2x1 | | 5t+3=2t+18 | | 5y-y+4-2y+9=45 | | 1/4(2x-5)=5 | | g(3)=240(0.25) |

Equations solver categories