Adding Subtracting Polynomials Math Lib

 $\left(4x^2-9x+1\right)+\left(x^2-5x-3\right)$  
Question 1

 $\left(3k^2-2k+5\right)-\left(2k^2-5k+1\right)$  
Question 2

 $\left(w^2-10w+2\right)-\left(4w^2+w+2\right)$  
Question 3

 $\left(3a^2+6a-2\right)+\left(2a^2-8a-7\right)$  
Question 4

 $\left(-3y^2-7y-2\right)-\left(5y^2+4y-5\right)$  
Question 5

 $\left(3-8n-n^2\right)+\left(7+2n^2-5n\right)$  
Question 6

 $\left(4x-6x^2-7\right)-\left(2+7x-5x^2\right)$  
Question 7

 $\left(8+4p^3-7p\right)+\left(5p^2+3+p\right)$  
Question 8

 $\left(6c^2-10c+2c^3\right)-\left(7c+4c^2+1\right)$  
Question 9

 $\left(11h+8h^2\right)-\left(3h^2-9+9h\right)$  
Question 10