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irakobra [83]
4 years ago
8

Factor 81x^2-49y^2 please show work.

Mathematics
1 answer:
svlad2 [7]4 years ago
5 0

Answer:

(9 x - 7 y) (9 x + 7 y)

Step-by-step explanation:

Factor the following:

81 x^2 - 49 y^2

Hint: | Express 81 x^2 - 49 y^2 as a difference of squares.

81 x^2 - 49 y^2 = (9 x)^2 - (7 y)^2:

(9 x)^2 - (7 y)^2

Hint: | Factor the difference of two squares.

Factor the difference of two squares. (9 x)^2 - (7 y)^2 = (9 x - 7 y) (9 x + 7 y):

Answer: (9 x - 7 y) (9 x + 7 y)

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Answer:

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Step-by-step explanation:

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Remember, we flip the sign of the inequality by multiplying / dividing by a negative number.

3 0
3 years ago
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Ten more than five times x equals five less than ten times x. What is the value of x?
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A student took out a simple interest loan for 2400 for 2 years at a rate of 7%. What is the interest on the loan?
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Answer:

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3 years ago
The following table shows the length and width of a rectangle: Length Width Rectangle A 3x + 2 2x − 1 Which expression is the re
Naddik [55]

Answer:

the answer is a polynomial 10x + 2

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3 years ago
What divided by 10² is 22.425
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Answer:

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