Answer:

1. a1+a2+a3= a^6

a raise to the power of 6

2. (2a²b)(4ab²)= 8a³b³

3. (6x²)(-3x^6)= -18x^8

18x raise to the power of 8

4. b³+b⁴+b^7= b¹⁴

5. (3x³)(3x⁴)(-3x²)= -27x^9

27 raise to the power of 9

6. (2x²y³)²= 2²x²×²y³×²= 4x⁴y^6

4x⁴y raise to the power of 6