Multiplying Polynomials

Using the box method, what is the product of the following binomials?

 $\left(x+4\right)\left(x-5\right)$  

Using the box method, what is the product of the following polynomials?

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

Using the distribution method, what is the product of the following binomials?

 $\left(5x+2\right)\left(x-3\right)$  

 $2y^2\left(y^2-6y+5\right)$  

Using either the distribution or box method, find the product:

 $-x\left(2x^3-x^2+6x-8\right)$  

Using the distribution or box method, find the product:

 $-3x\left(x^2-7x-6\right)$  

Using the distribution or box method, find the product:

Using the box method, find the product:
 $\left(2x-4\right)\left(3x+5\right)$  

Using the box method, find the product:
 $\left(x-3\right)\left(3x-6\right)$  

Using the distribution method, find the product:
 $\left(x-7\right)\left(x-2\right)$  

Using the distribution method, find the product:  

 $\left(x-4\right)\left(x^2+7x-8\right)$  

Using the distribution method, find the product:
 $\left(-2x^2+5\right)\left(x^3-8x-6\right)$