Answer:
x³ + 5x² + 5x - 2
Step-by-step explanation:
Given
x³ + 3x² - x + 2x² + 6x - 2 ← collect like terms
= x³ + (3x² + 2x² ) + (- x + 6x ) - 2
= x³ + 5x² + 5x - 2
Not 100% but all real number so D
Answer:
Here. Tell me if you don't understand my writing.
Answer:

Step-by-step explanation:




10. imagine each person as the poits of a pentagon. from there, connect each point with each other. the connections between each point(person) should be 10.