Which sum or difference is modeled by the algebra tiles?


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


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


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


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

Which sum or difference is modeled by the algebra tiles A x 2x 4x 2x 1 2x4x 3 B x 2x 4x 2x 1 2x4x 3 C x 2x 4x 2x 1 2x4x 3 D x 2x 42x2x1 2x4x 3 class=

Respuesta :

Answer:

Option A) [tex](-x^2 - 2x + 4)-(x^2 + 2x +1)= -2x^2-4x +3[/tex] is modeled by the algebra tiles

Step-by-step explanation:

Given [tex](-x^2 - 2x + 4)-(x^2 + 2x +1)= -2x^2-4x + 3[/tex]

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

Now applying the algebraic sum operations we get

[tex](-x^2 - 2x + 4)-(x^2 + 2x +1)=-x^2 - 2x + 4 - x^2 - 2x -1[/tex]

[tex]= -2x^2-4x + 3[/tex]   ( using algebraic sum operations )

Therefore [tex](-x^2 - 2x + 4)-(x^2 + 2x +1)=-2x^2-4x + 3[/tex]

Option A)  [tex](-x^2 - 2x + 4)-(x^2 + 2x +1)=-2x^2-4x + 3[/tex] is modeled by the algebra tiles

The sum of   A. (-x² - 2x + 4)-(x² + 2x +1) = -2x²-4x + 3