2x squared minus 4
-144
The answer is 4 squared minus 2 squared as 4 squared is 16 minus 2 squared, which is 4, gives you 12 as an answer.
That factors to 3(r - 5)(r + 1) r = 5, -1
1/x4
2x squared minus 4
-144
The answer is 4 squared minus 2 squared as 4 squared is 16 minus 2 squared, which is 4, gives you 12 as an answer.
That factors to 3(r - 5)(r + 1) r = 5, -1
It is: 9-4 = 5
4
000000
1/x4
2
(b-4) squared
(x - 5)(x + 4)
(x+4)(x-7)