14 Peter spent 3x2 + 4x – 10 pesos for notebooks and 5x + 6 pesos for pens. Write a
polynomial that represents the total cost of purchase.

A. 3x2 + 9x + 4
B. 3x2 - 9x + 4
C. 3x2 + 9x - 4
D. 3x2 - 9x - 4

15. A carpenter has a wood that is 5x2 + 2x - 4 feet long. Represent the length of the wood after
2x + 3x - 7 feet have been cut off.

A. 3x²+x+3
B. 3x2 - x + 3
C. 3x² - x - 3
D. 3x2 + x - 3
give me a solution ​