Factorize completely the following algebra expression :
81x^4-16y^8

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that