4x2/81 = 1 - 16x2/25100x2 = 25*81 - 16*81x21396x2 = 2025x2 = 2025/1396x = +/- 1.2044, approx.
zero
25 + 16 - 13 - 21 = 7
It is: 9+16 = 25
(3y - 5)(y + 5)
5 squared is 25 4 squared is 16 25-16= 9 the square root of 9 is 3.
4x2/81 = 1 - 16x2/25100x2 = 25*81 - 16*81x21396x2 = 2025x2 = 2025/1396x = +/- 1.2044, approx.
16/25 - 10/25 = 6/25
zero
It is 25 minus 9 = 16
-9
It is, as stated, x2 - 5x + 25/4 = 0
(4x-5)(4x+5)
25 + 16 - 13 - 21 = 7
It is: 9+16 = 25
4/5 x 4/5 = 16/25
(3y - 5)(y + 5)