Sagot :
Answer:
1. -15a²c³
2. 4ₓ²-4ₓ-24
3. 30ₓ-25+20
4. ₓ²-9
5. 4c²+20c+24
Solution:
1. Multiply the numerical coefficients, then add the exponents of the variables.
2. Use the FOIL Method
3. Distribute or multiply 5 to all the terms in the parenthesis or so called trinomial.
4. Use the FOIL Method
5. Use the FOIL Method