Answer:
10. x² - x -6
11. 9/2πx³
Explanation:
For Number 10, use the FOIL method. Multiply the ...
FIRST NUMBER IN EACH PARENTHESIS
OUTER NUMBERS
INNER NUMBERS
LAST NUMBERS
For number 11,
Just multiply 3/2x three times and plug it back into formula for the volume of a spear
3/2 × 3/2 × 3/2 = 27/8 x³
Volume of Sphere = 4/3π × (27/8x³)
Don't forget to simplify
4/3π × (27/8) = 9/2πx³