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Y_Kistochka [10]
2 years ago
7

Multiply Conjugates Using the Product of Conjugates Pattern

Mathematics
1 answer:
siniylev [52]2 years ago
8 0

Answer:

The product is the difference of squares is $$(9c-2d)(9c+2d)=81{{c}^2}-4{{d}^2}$$

Step-by-step explanation:

Explanation

  • The given expression is (9c-2d)(9c+2d).
  • We have to multiply the given expression.
  • Square the first term 9c. Square the last term 2d.

$$\begin{aligned}&(9 c-2 d)(9 c+2 d)=(9 c)^{2}-(2 d)^{2} \\&(9 c-2 d)(9 c+2 d)=81 c^{2}-4 d^{2}\end{aligned}$$

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Answer:

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Step-by-step explanation:

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3 years ago
two crates contain Apple's, pears and oranges. there are 184 apples and pears in crate one and 248 apples and oranges in the sec
Ray Of Light [21]

Answer: There are 152 apples.

The explanation is shown below:

- You need to write the following three equations, where a is the the number of apples, p is the number of pears and o is the number of oranges:

1) a+p=184

2) a+o=248

3) o=3p

-  You must substitute the equation 3) into the equation 2):

 a+3p=248

- Now, you need to solve for p in the equation 1) and then you must substitute it into a+3p=248:

p=184-a

a+3(184-a)=248

- Solve for a, as following:

a+552-3a=248\\-2a=-304\\a=\frac{-304}{-2}\\a=152

- Therefore, there are 152 apples.

7 0
3 years ago
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mr Goodwill [35]

Answer:

the answer would be a I am pretty sure

4 0
4 years ago
Read 2 more answers
What is the measure of angle BAC?
KATRIN_1 [288]

Answer:

∠BAC = 105°

Step-by-step explanation:

2(5x) = 9x+21

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reduce:

x = 21

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The answer which option is it
Murrr4er [49]
I think fifteen bands
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