12x2 + 20x - 25 IS a polynomial that factors into (2x + 5)(6x - 5)
c = 25 4x2 + 20x + 25 (2x + 5)(2x + 5)
(2x+5)(2x+5)
Solution: 20+25=? 20x.2=4 20+4=24 ans.
25 = 5 * 5, or 25 = 25*1 the factors of 25 are: 1,5,5, & 25 (4 factors)
12x2 + 20x - 25 IS a polynomial that factors into (2x + 5)(6x - 5)
It is: (2x+5)(6x-5)
(2x + 5)(6x - 5)
Assuming the missing signs are pluses, that factors to (2x + 5)(2x + 5)
4x2+20x+25 (2x+5)^2
c = 25 4x2 + 20x + 25 (2x + 5)(2x + 5)
16x2 + 40x + 25 = 16x2 + 20x + 20x + 25 = 4x(4x + 5) + 5(4x + 5) = (4x + 5)(4x + 5) = (4x + 5)2
The discriminant is 0.
(2x - 5)(2x - 5)
... You have to know what x and y are first.
(2x+5)(2x+5)
2x + 5 = 25 2x = 20x = 10