Which expression is equivalent to 12x − 8x + 3 and why? a. 3 + 4x, because (12x − 8x) + 3 = 4x + 3 = 3 + 4x b. 7x, because 12x − 8x + 3 = 4x + 3 = 7x c. 12x − 5, because 12x − (8x − 3) = 12x − 5 d. x, because 12x − 8x + 3 = 12x − 11x = x

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.

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3