Answer:
21
Step-by-step explanation:
tienes que aser 3 por 7
Answer:
<1 and <2 are remote interior angles of <6
<2 and <3 are remote interior angles of <4
Answer:-4,5625 i think
Step-by-step explanation:
Step-by-step explanation:
(2x-y+3)(2x-y-3)=
4x²-2xy-6x-2xy+y²+3y+6x-3y-9=
4x²-4xy+y²-9=
(2x-y)²-9