5x2 + 20x = 0
5x(x + 4) = 0
x = 0 and -4
25x2 + 40x + 16 = 25x2 + 20x + 20x + 16 = 5x(5x + 4) + 4(5x + 4) = (5x + 4)(5x + 4) or (5x + 4)2
No.
35
Well, darling, the Least Common Multiple (LCM) of 4x and 5x is simply 20x. You see, 4x and 5x are both factors of 20x, making it the smallest multiple they both share. So, there you have it, sweet pea, 20x is the LCM of those two little troublemakers.
20x + 4 = 4(5x + 1)
5(x + 3)(x + 1)
5x2 + 20x = 5x (x + 4)
5x^2 + 20x
25x2 + 40x + 16 = 25x2 + 20x + 20x + 16 = 5x(5x + 4) + 4(5x + 4) = (5x + 4)(5x + 4) or (5x + 4)2
20x+7=5x+10 15x=3 3/15=.2 x=.2
4(5x + 3) - 9 = 20x + 3
5x(x^4+7x+4)
5x(3x+4)
5x squared plus 33x plus 18 = (5x + 3)(x + 6) x = -6, -3/5
x^(2) + 5x^(2) = 6x^(2) Think of it as 2 + 5(2) = 6(2) ( 2 + 10 = 12 = 6(2)) Note : You just add the coefficients(numbers)/. However, be careful and note the difference for multiplication. x^(2) X 5x^(2) = 5x^(4) ( That is 'five 'x' to the fourth power'). In this case x^(2) means x X x and 5x^(2) = 5 X x X x , so on multiplication it becomes 5 X x X x X x X x = 5x^(4)
15
-15x2+5x=-5x(3x-1)