Which sum or difference is modeled by the algebra tiles?

a. (-x² - 2x + ² + 2x +1)
= -2x²-4x + 3

b. (-x²- 2x + 4)+(-x² - 2x +1)
= -2x²-4x + 3

c. (-x²- 2x + ²- 2x -1)
= -2x²-4x + 3

d. (-x²- 2x + 4)+(-2x²+2x+1) = -2x²-4x + 3

Option A) is modeled by the algebra tiles

Step-by-step explanation:

Given

To verify that the given sum or difference is modeled by the algebra tiles

Now applying the algebraic sum operations we get

  ( using algebraic sum operations )

Therefore

Option A)   is modeled by the algebra tiles

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x