(x-4)(x-4)
(x - 4)(x - 4)
The only factor is 2. 2*(t3 + 2t2 + 4x)
-16
32
Why, yes, indeed, it has! Look at the factors: x2 - 8x + 16 = (x - 4)2 = (x - 4)(x - 4). If you multiply it out, you will see that it is so. Note that ' (x - 4) ' appears twice in the factorisation. That is what we mean, by a 'repeated factor'.
(x + 6)(x + 2)
x + 4
X2 + 8x + 16 = 10x +16x2 + 8x + 16=2x + 8x + 16=10x + 16
2(4x - 3)
x² + 8x + 15 = (x + 5)(x + 3)
It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one expression, 8x+16, in the question!
18 because, 5x2=10 10+8=18! Your welcome. It's not a problem at all. I love math!