I need help with this question.

3x m

Step-by-step explanation:

Area of Rhombus = Diagonal 1 * Diagonal 2

(3x² + 6x) = (x + 2) * Diagonal 2

3x(x+2) = (x + 2) * Diagonal 2

3x(x+2)/(x + 2) = Diagonal 2

3x = Diagonal 2

L of Diagonal 2 = 3x m

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.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.