Use the difference of two squares identity to factor each of the following expressions. (a) x²-81 (b) (3x+y)² -(2y)² (c) 4-(x-1)
² (d) (x+2)²-(y-2)²
1 answer:
Answer:
a) 
b) 
c) 
d) 
Explanation:
Factor the expression using difference of two squares.
Formula:
Part a) x²-81
write 81 as perfect square.




Part b) (3x+y)² -(2y)²




Part c) 4-(x-1)²
write 4 as perfect square,





Part d) (x+2)²-(y-2)²




You might be interested in
Answer:
no
Step-by-step explanation:
because i siad so
Can you add the picture so im able to see and help :)
1 1/4 + 1/2 + 3/4 =
5/4 + 1/2 + 3/4 =
5/4 + 2/4 + 3/4 =
10/4 = 2 1/2 (or 2.5) oz's <
I'm really bad at math so can you help me with that
Answer: 1.02
Step-by-step explanation: