Answer:
P = (x + y)(x - y)(x + 2)(x - 2)
Step-by-step explanation:
P = -x²y² + x⁴ + 4y² - 4x²
Rewrite the polynomial in descending powers of x and ascending powers of y. Then
P = x⁴ - 4x² - x²y² + 4y²
Remove the common factor from the first two and the last two terms.
P = x²(x² - 4) - y²(x² - 4)
Distribute x² - 4
P = (x² - y²)(x² - 4)
Factor each binomial
P = (x + y)(x - y)(x + 2)(x - 2)
Answer:
Rotation
Step-by step
because when u flip everything around its called rotation. hope this helps u
New pump:
5 hours = 1 pool
1 hour = 1/5 pool
Old pump:
15h = 1 pool
1h = 1/15 pool
If both work together
1h = 1/5 + 1/15 = 4/15 pool
4/15 pool = 1 hour
1/15 pool = 1/4 hour
15/15 pool = 1/4 x 15
1 pool = 3.75 hours or 3 hours 45 mins
According to Adam Smith, self interest and competition act as an invisible hand, guiding firms in a market-based economy.
2x+4 -3x -15=-2x+4
-1x-11=-2x+4
-11=-1x +4
-15=-1x
15=c