(7x+3)(2x-1)=0

Simple and best practice solution for (7x+3)(2x-1)=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 (7x+3)(2x-1)=0 equation:



(7x+3)(2x-1)=0
We multiply parentheses ..
(+14x^2-7x+6x-3)=0
We get rid of parentheses
14x^2-7x+6x-3=0
We add all the numbers together, and all the variables
14x^2-1x-3=0
a = 14; b = -1; c = -3;
Δ = b2-4ac
Δ = -12-4·14·(-3)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-1)-13}{2*14}=\frac{-12}{28} =-3/7 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+13}{2*14}=\frac{14}{28} =1/2 $

See similar equations:

| j+17=94 | | 35=s+15 | | -36=12g-48 | | 8z+z−7z=6 | | n/6=4+2 | | 9x-10x=11 | | -3(k-5)=12 | | 7w+6+2w=18(w+2) | | n/3+6=21 | | 1/5f-22=-25 | | 7d-4+d=12+5d+5 | | b÷8=3 | | 8+-5y=-7 | | 2/21x=21 | | x2+2=123 | | 12u^2+13u+3=0 | | 7(4+6p)=91 | | 7w+6+2w=-35(w+2) | | 13x-6=-108 | | 10-5f=-3f+10 | | 2/9+3n/18=21/36 | | 5x-9=2x-4 | | x-8=-7x−8=−7 | | 6x-4=9x+11 | | 7w+6+2w=2.7(w+2) | | -5=-3+p | | -5=-3=p | | -6(13x)=-108 | | 7w+6+2w=-10(w+2) | | 7w^2-50w+7=0 | | 8y-17=-9y | | 7w+6+2w=-3(w+2) |

Equations solver categories