Which sum or difference is modeled by the algebra tiles?
A (x2 - 2x + 3) - (-x2 - 4x - 2) = 2x - 1
OB. (x²-2x-3) + (x² - 4x+2) = 2x-1
C. (x2 - 2x - 3) - 12 + 4x + 2) = 2x - 1
OD. (x²-2x-3) + (-x² + 4x+2) = 2X-1

OD

Step-by-step explanation:

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

mxb67

step-by-step explanation: