Select the correct answer.

which sum or difference is modeled by the algebra tiles?

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

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

c. (-x2 + 2x + 3) + (-x2 + 2x + 1) = -2x2 + 2

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

The only answer choice that produces -2x²+2 is D.

Because (-x²+2x+3)+(-x²-2x-1) = -x²+2x+3-x²-2x-1 = -2x²+2

D

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y