(X-1)(x+1)=143

Simple and best practice solution for (X-1)(x+1)=143 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-1)(x+1)=143 equation:



(X-1)(X+1)=143
We move all terms to the left:
(X-1)(X+1)-(143)=0
We use the square of the difference formula
X^2-1-143=0
We add all the numbers together, and all the variables
X^2-144=0
a = 1; b = 0; c = -144;
Δ = b2-4ac
Δ = 02-4·1·(-144)
Δ = 576
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{576}=24$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-24}{2*1}=\frac{-24}{2} =-12 $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+24}{2*1}=\frac{24}{2} =12 $

See similar equations:

| (X-1)(x+1)=360 | | z=5/1.2=3.6 | | 7x+25=465 | | (11x-89)+(7x-73)=180 | | 40x+36=180 | | 10x−9x+1=x+5−4 | | 4-y=-8 | | (12(5)+10)+z=180 | | 3.8(2p+5)=5p+12.5 | | (12x+10)=(9x+25) | | 21/4=h/8 | | -2x-5+5x=32 | | a÷4+7=15 | | 100+84+x/3=64 | | m2+2m-48=-6 | | 3x-1/4x+2=2/3 | | 15m-10+20m=5m+62-6m | | 6(3c-1)-c=-40 | | 5x+4−2x=10+2x−6 | | 10+2(x–1)+7x=3x+1 | | (14x-6)+(10x-30)=180 | | (1/2)(10x)=50000 | | 12s=72172737 | | 2x=45+1.60x | | 13.6=4x | | 6m-27+18m=3m+29-7m | | 5a-(a-1)=4 | | 2+8=4r | | 5+7.5r=2.5 | | 4/5+3y=5/5 | | 8.7=9.5-0.4x | | 9x+4=15x+2 |

Equations solver categories