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3 years ago

Help quick please!!

Mathematics

1 answer:

Korolek [52]3 years ago

3 0

Answer:

Difference of squares:

y^4−25

16x^2−81

Not difference of squares:

20m^2n^2−121

p^8−q^5

Step-by-step explanation:

y^4−25

(y²)² - 5²

16x^2−81

(4x)² - 9²

20m^2n^2−121

20 is not a perfect square

p^8−q^5

q⁵ is not a perfect square

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During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula

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The percent increase of the second year is 400%.

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Consider the provided information.

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What value should be added to the expression to create a perfect square? x^2 - 20x

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To complete the square:
we take the coefficient ox "x" (which in this problem is -20)
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