It is a second degree equation, since the major exponent is 2. In the multiplication of polynomials, it is necessary to consider their exponents, because these are added by passing the same variable, and they must always be integers
Part A: The expression would be (4x+5)(3x+10), or, when expanded, 12x^2+55x+50 since the area of a rectangle is length*width
Part B: The degree is 2 because it's classified as a quadratic and trinomial expression
Part C: The closure property of polynomials is that polynomials will be closed under an operation if the operation produces another polynomial. For example, since we had to multiply two binomials in Part A, the exponents of x get combined to make x^2 (because x^1*x^1=x^(1+1)=x^2)
Step-by-step explanation: the inequality itself would be like this
8<x (there should be a line under the “<“ i just can’t make it) then you want to draw a vertical line on the x value 8 and shade to the right of the line.
