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Lady bird [3.3K]
3 years ago
7

Which will result in a perfect square trinomial (3x-5) (-3x-5)?

Mathematics
1 answer:
makvit [3.9K]3 years ago
8 0

Answer:

-9x² + 25

Step-by-step explanation:

To solve, use FOIL. FOIL:

First

Outside

Inside

Last

Solve "First":

(3x)(-3x) = -9x²

Solve "Outside":

(3x)(-5) = -15x

Solve "Inside":

(-5)(-3x) = +15x

Solve "Last":

(-5)(-5) = +25

Combine like terms:

-9x² - 15x + 15x + 25

-9x² (-15x + 15x) + 25

-9x² + 25

-9x² + 25 is your answer.

~

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4 0
3 years ago
How do i get the factor of 3p2-2p-5
tensa zangetsu [6.8K]
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Hope this helps!
5 0
3 years ago
Read 2 more answers
A boat drops an anchor 17.5 feet to the bottom of a lake.If the anchor falls at a rate of .07 feet each second how long will it
Serhud [2]

Answer:

25 Seconds.

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You need to know how many seconds it takes to read the bottom of the lake.

If, each second, the anchor is falling 0.7 feet, then you need to know how many times it falls 0.7 feet.

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4 0
3 years ago
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uysha [10]
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8 0
3 years ago
Please help me with questions 21 and 22
valentina_108 [34]
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