x2 - 9x + 20 = (x - 4)( x - 5)
Oh, dude, that's like basic math, right? So, 2x squared plus x squared is just 3x squared. It's like adding apples to apples, but with math. Easy peasy lemon squeezy!
2(5c + 2d)(5c + 2d)
Well, honey, x squared plus 6x is a polynomial expression that can be simplified by factoring out an x. So, the answer is x(x + 6). Now go forth and conquer those math problems like the boss you are!
35
(3t + 1)(t + 5)
You don't! There are no common factors.
(x + 5)(x + 1)
x(x + 23)
(x - 2)(2x - 3)
the answer is (3x-2)(9x squared+6x+4)
x2 + 6x + 8 =(x + 2)(x +4)
The expression x2 + 1x - 12 can be factored out as (x - 3)(x + 4)
It can't be factored because the discriminant of this quadratic expression is less than zero.
this problem cannot be factored
All you can do to factor that expression is to divide both terms by y: y2 + 4y = y(y + 4)
If you mean (1+2x)2, that is already factored.