d^2+2d-3=0

Simple and best practice solution for d^2+2d-3=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 d^2+2d-3=0 equation: 



d^2+2d-3=0

a = 1; b = 2; c = -3;
Δ = b2-4ac
Δ = 22-4·1·(-3)
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$d_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$d_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$


$d_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(2)-4}{2*1}=\frac{-6}{2}
=-3
$


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

See similar equations:

| 3x-198=11x+66 | | 30=4/5x-3/10x | | 20x+32=5x-13 | | 4x​2​​+8x+3=0 | | 5m/4+2=17 | | 3x+14=26-2x | | 3(3x+1)-10=3x+17 | | 3x-12=2x+3x= | | 9x+7=7x-15 | | 3x^2+71/4x=2 | | 3a-8-a=8a-32 | | 9m-7=41 | | 5y=4-y | | Y-4+3y=7y+1 | | 7m+4=5m-18 | | 3(x+4)=3x=11 | | 2y-5-4=7y+21 | | .76(24-8x)=2(5x+1) | | 3y-4=-4y-8 | | 3r-8=5r-16 | | 1.5(4x+6)=3(x-3) | | 8-(3+x)+10x=√100*x | | 48=x+4x | | (-1+x)/2=4 | | 7+4n;n=5.4 | | 0.6x^2+3.6x+0.6=(3+0.6x)(1+x) | | 2x-4/3-3x+2/4=(x-5)/6-3/1 | | 2x-8=10-0.4x | | 11+8q=3q+19 | | 5x+6=8x-24 | | 4(2x-3)+5x=3x-4 | | K=20x-4x^2 |

Equations solver categories