Multiply the following rational algebraic expressions
can anyone help me plsss

Answer:
72x⁴
30x⁴
180x²y²
120xy³
Step-by-step explanation:
9x⁴ × 8 = 72x⁴
10 × 3x⁴ = 30x⁴
12x²y² × 15 = 180x²y²
5 × 24xy³ = 120xy³