x = ? 42 = x squared minus x
Sin squared, cos squared...you removed the x in the equation.
The answer to x2 - 2x - 4y2 - 4y =(x - 2y)(x - 2y - 2)
What about it? Factorise it?
x - 2
(x - 10)(x + 2)
x2 - x = 20 x = 5
x = ? 42 = x squared minus x
(x - 4)(3x + 5)
(x - 5)(x - 2)(x - 2)
4x + 20
-22 - -22
By factoring I get x-3 divided by x+3
xsquared minus x minus 72
x2+x-380 = (x+20)(x-19) when factored
(x−6)(x+5)
Sin squared, cos squared...you removed the x in the equation.