Sagot :
Answer:
[tex]1.[/tex]
[tex]2. \: \: 8x {}^{3} + 27 [/tex]
[tex]3. \: \: 2x {}^{3} - 9x {}^{2}10x + 24byxy + 3 [/tex]
correct me if I'm wrong;)...
Step-by-step explanation:
1.x³+12x²+48+64
add x³ and 12x³
13x³+48x+64
2. a³+b³= (a+b) (a²-ab+b²) where a=2x
and b=3.
3. Factor the numerator and denominator and cancel
the common factors
-7x³-10x+12by 2x+3