Sagot :
Answer:
1. 40m²
2. -6a⁴
3. 4x⁵-2x⁴
4. 24y³+3y²-3y
5. a³+2a²+a
Step-by-step explanation:
1. 5•8 = 40
mx•m = m²
=40m²
2. -2•3 = -6
a²•a² = a⁴ (just add the exponents)
= -6a⁴
3. 2x³•2x² = 4x⁵ (again just add the exponents)
2x³• -x = -2x⁴ (supposedly it is understandable that -x has an exponent of 1)
= 4x⁵-2x⁴
4. 3y•8y² = 24y³
3y•y = 3y²
3y• -1 = -3y
= 24y³+3y²-3y
5. a•a² = a³
a•2a = 2a²
a•1 = a
= a³+2a²+a