Write addition or Subtraction to tell which operation it would be easiest to use to eliminate a variable of the system. Explain your choice.

I believe both addition would eliminate a variable

Step-by-step explanation:

EX: 1/4x = 3

4/1 x 1/4x = 3 x 4/1 =

1x = 12

therefore x = 12 using the inverse properties

This proves addition can eliminate a variable

Srry if this didnt help

But i hope this did.

1. when "a" is a root of a polynomial, (x -a) is a factor of it. for the three roots given, the factors of the desired polynomial are (x +2)(x -1/2)(x -3).

in order to make the leading coefficient be negative, we need to multiply this product by a negative number. any negative number will do, but we choose a small (magnitude) value that will eliminate the fraction: -2.

then

f(x) = -2(x +2)(x -1/2)(x -3) = -(x +2)(2x -1)(x -3)

= -(2x² +3x -2)(x -3)

= -(2x³ -3x² -11x +6)

f(x) = -2x³ +3x² +11x -6

2. a graph created by the desmos on-line graphing calculator is shown, and the zeros are highlighted.

3. as indicated in part 1, the multiplier of this equation can be anything and the zeros will remain the same. you want a negative leading coefficient, so the "anything" is restricted to any of the infinite number of numbers that will make that be the case.

8p+(-9)

(-9)3p+5p and you can swith em around