3 is the 10 billions place
Answer:
b
Step-by-step explanation:
i think
Answer:
4 pens
Step-by-step explanation:
better value
will you receive the grade immediately?
(ax-by)²+(bx+ay)²
a²x²-2axby+b²y²+b²x²+2axby+a²x²
a²x²+b²x²+b²y²+a²x²
(a²+b²)x²+(a²+b²)y²
(a²+b²)(x²+y²)
