-15x2+5x=-5x(3x-1)
5(x2 + x + 1)
15
5x squared plus 33x plus 18 = (5x + 3)(x + 6) x = -6, -3/5
x(x2+5x+6)
5x(3x + 1)
(x - 1)(5x + 7)
(5x - 2)(x - 5)
35
Oh, dude, you're hitting me with some math now? Alright, so you're looking at the quadratic expression x^2 + 5x + 4. To factor this, you want to find two numbers that multiply to 4 (the constant term) and add up to 5 (the coefficient of the x term). Those numbers are 1 and 4, so the factored form is (x + 1)(x + 4). That's it, easy peasy lemon squeezy!
5x(6x + 7y + 8)
(2x + 1)(x + 2)