Answer:
I'm not sure if this is fully correct but I think it is.
Step-by-step explanation:
1)x^8
2)81y^2
3)16x^4
4)-125y^9
5)a^12b^4
6)x^32/256
7)54a^6
8)8x^10
9)-48y^4x^2
10)8192x^11y^6
11)512x^9y^3
12)-96x^14y^2
13)324m^4n^2+(n^2m/6)
14)8r^6s^10
15)6x^15y^21
We can group the expression x³ + 4x² + 5x + 20 as (x³ + 4x²) + (5x + 20). We have factor out the common factors and have
(x³ + 4x²) + (5x + 20)
x²(x + 4) + 5(x + 4)
From this, we have x³ + 4x² + 5x + 20 = x²(x + 4) + 5(x + 4). And thus, the answer is <span>B.</span>
I'm sorry if I was too late ... :(
