Math: i just need this factored out.

2x^2+5x-12

ex: 3x^2+6x-18
3(x^2+2x-6)

^-^ i don't know if it's 5/2 or something else..

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

How are algebraic expressions evaluated using substitution?