Answer:
1) 5x³ + 3x²
2) 25 - 3x⁵
3) -4ab + 2a² + 26
4) p²q³ + pq
Explanation:
Like terms are expressions like 3x and 2x or 5x² and 8x².
1) x² + 5x³ + 2x²
5x³ + 3x²
2) -2x⁴ + 16 + 2x⁴ + 9 - 3x⁵
-2x⁴ + 2x⁴ + 25 - 3x⁵
25 - 3x⁵
3) ab - a² + 4² - 5ab + 3a² + 10
ab - a² + 16 - 5ab + 3a² + 10
ab - a² - 5ab + 3a² + 26
ab - 5ab + 2a² + 26
-4ab + 2a² + 26
4) 3p²q² - 3p²q³ + 4p²q³ - 3p²q² + pq
3p²q² + p²q³ - 3p²q² + pq
p²q³ + pq