hii po help po :(((((

Answer:
x-2x⁴
Step-by-step explanation:
5x+x⁴-3x⁴-4x
= x-2x⁴
tama ba?
Answer:
11. -2x4 + x
12. 12x5 + x³ + 9x² +4
Step-by-step explanation:
sana nakatulong