x = plus or minus 6.
Solve this problem -x squared -40x- 80 =0
Your Problem: X - 4 = ?Current Problem: 3 [squared] - 4 = ?How: When a numbered is squared, it means you multiply it against itself. So, 3 squared equals 3x3.3x3 = 9So, you would then take 9 and minus it by 4, which would than equal 5.Answer:3 [squared] - 4 = 5or9 - 4 = 5
4, -5
By factoring I get x-3 divided by x+3
2
The solutions are: x = 4, y = 2 and x = -4, y = -2
(x - 5)(x + 4)
15.
x = plus or minus 6.
x=3
If x squared -10 = 0 then x = the square root of 10
5 or 12
(x, y) = (-3, -3) or (3, 3)
x = -2/3,7/6
You have to put your heart into it!
4x2 - 20 = 0∴x2 - 5 = 0∴x2 = 5∴x = √5