Which of the following expressions is a different of two squares A,4x²–81
B,(2x–9)(2x+9)
C, x–2
D, m³–64

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Me! i will mark brainliest! i don't get polynomials and all that other stuff. so this question is really hard. multiply and simplify.(x - 4) (x^2 – 5x – 6)show your