The expression 2x(3x^2+4) can be simplified into which of the following?

a. 6x^3+4

b. 5x^3+6x

c. 6x^2+8x

d. 6x^3+8x

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?