Your question is a difference of squares. both terms that need to be factored are squared. to solve take the square root of each put into two terms one of addition and one of subtraction.
anwser= (5x-9)(5x+9)
the reason this works is because when you foil you get
25x²-45x+45x-81
the middle terms cancel revealing
25x²-81
Answer:
Step-by-step explanation:
-3b - 3b= (-3b)+(-3b)= -6b
Answer:
me too i need help its in my HW and exam
Step-by-step explanation:
OPTION A , C,D
are the correct choices because all of them are equal to √5
Answer:
sin p -21/29
cos q 21/29 so here you go °~sohcahtoa~°
Step-by-step explanation:
sin means you find the soh part so you look for the oppisite over hyponuse
and for cos your looking for cah part so you find the adjsent over hypotnuse so the ansers is 21/29