If it's not what You are looking for type in the equation solver your own equation and let us solve it.
(7+x)(7-x)=0
We add all the numbers together, and all the variables
(x+7)(-1x+7)=0
We multiply parentheses ..
(-1x^2+7x-7x+49)=0
We get rid of parentheses
-1x^2+7x-7x+49=0
We add all the numbers together, and all the variables
-1x^2+49=0
a = -1; b = 0; c = +49;
Δ = b2-4ac
Δ = 02-4·(-1)·49
Δ = 196
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{196}=14$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-14}{2*-1}=\frac{-14}{-2} =+7 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+14}{2*-1}=\frac{14}{-2} =-7 $
| 3(j-7)=3 | | 5x3x+50=180 | | -2x(5x+13)-2=-6(3x-2)-41 | | 2g-2g+4g+1=13 | | (7+x)(7-x)=(7+x)(7−x)= | | x-9=2x-37 | | 20a-15a-3=7 | | 8-9w=26 | | -(m+-4)+-3=-8 | | -7q+3=24 | | 44=34+u | | 1-v=-3 | | u+29=35 | | -10t+-2t+-10t+-7=15 | | 2(x-3)=−24 | | -(m+-8)=-9 | | 0.3n^2-2n=0 | | -2(x+3)-4=8x | | 5n+2=n | | –v=8+3v | | 4-v=-4 | | 7u=9u+6 | | 5p+8-2=5p+6 | | 2-(t/5)=-6 | | 6^x-7=19 | | 3/4x+2=1/8x-3 | | 4y=3y-24 | | 4x-10=3x+11 | | 360=(4y-50)+2y | | 360=4y-50+2y | | 4x-5-6x=13 | | -5(-2x-8)+10x=100 |