2x2+7x=4x

Simple and best practice solution for 2x2+7x=4x 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 2x2+7x=4x equation:



2x^2+7x=4x
We move all terms to the left:
2x^2+7x-(4x)=0
We add all the numbers together, and all the variables
2x^2+3x=0
a = 2; b = 3; c = 0;
Δ = b2-4ac
Δ = 32-4·2·0
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{9}=3$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-3}{2*2}=\frac{-6}{4} =-1+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+3}{2*2}=\frac{0}{4} =0 $

See similar equations:

| 2.5-3.5x=32x-48 | | 4x^2=110 | | w/3-2=19 | | 5x^2=10^10 | | a^2+12^2=20^2 | | x^2-78x+716=0 | | 2x-(-x+6)=-4x+2×(x+8)+18 | | y/7-9=8 | | (6x+3)/(x+3)=3 | | 7(6+7)=5c+59 | | 3x-45=-0.5x-159.83 | | 25+x^2=13^2 | | a/4+5=6 | | -36-6m=-8(4m-2) | | p^2-4p=-4 | | 3(3−3x)=2(x+3)−30 | | n^2+81=15^2 | | 5*6^3x=25 | | 5/4y=40,y | | 6(1+7n)=-30+6n | | 49/4=135/x | | 18r-8r=20 | | 16c+4c=980 | | h+-3h-12h=-14 | | -6(7n+3)+5=-13+3n | | (2x+1)2-(x+13)=3x2-2x+2 | | 7−2p=2p+5+2p | | 4(m-2)=243 | | 2(2x=4)=14 | | 180=7x+24+3x+92 | | -8/5+1/2v=-2/3 | | 9u+u-10u+4u-u=18 |

Equations solver categories