In a group of 21 students, 8 students take art courses, 7 students take music courses. two students take both courses. a student is chosen randomly from this group. what is the probability that the student takes both art or music courses? 13/21 8/21 2/7 5/7

13/21

Step-by-step explanation:

8/21 + 7/21 -2/21 = 13/21

You would do the minus two since two students take both.

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).