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Alex777 [14]
2 years ago
6

Please help me with this! I got one answer, although I am not sure if it is correct. i think it wants 2 answers

Mathematics
2 answers:
elena-s [515]2 years ago
5 0

Answer:

it wants you to factor/solve for 36a^4 b^10 -81a^18 B^20 using those strategies, so i believe you're already done.

Step-by-step explanation:

IM NOT A EXPERT THOUGH

zalisa [80]2 years ago
5 0

Step-by-step explanation:

<u>Given expression:</u>

  • 36a^4 b^{10} - 81a^{16} b^{20}

a)

<u>GCF of the terms is:</u>

  • 9a^4b^{10}

<u>Factoring:</u>

  • 36a^4 b^{10} - 81a^{16} b^{20}=9a^4b^{10}(4 - 9a^{12}b^{10})

b)

<u>Difference of squares:</u>

  • 36a^4 b^{10} - 81a^{16} b^{20}=(6a^2b^5)^2-(9a^8b^{10})^2=
  • (6a^2b^5+9a^8b^{10})(6a^2b^5-9a^8b^{10})

<u>If you combine both of the methods you will end up with the answer given on the bottom of the question:</u>

  • 9a^4b^{10}(4 - 9a^{12}b^{10})=9a^4b^{10}(2 + 3a^6b^5)(2-3a^6b^5)
  • (6a^2b^5+9a^8b^{10})(6a^2b^5-9a^8b^{10})=9a^4b^{10}(2 + 3a^6b^5)(2-3a^6b^5)
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How to use the numbers 4, 7, 3, and 9 to get the number 25 only using the operations multiplication, division, and addition
bearhunter [10]

Answer:

(9 x 7)/3 + 4

Step-by-step explanation:

9 x 7 = 63

63 divided by 3 is 21.

21 + 4 = 25

5 0
2 years ago
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Hermes says that the opposite of 9 is 9 since
wel
Answer: Hermès is incorrect. The opposite of 9 is -9.


Explanation: In this question, Hermès gives an incorrect answer, claiming that the opposite of 9 is also 9. To find the correct answer, let’s first look at his reasoning. He was right in one thing- to find the opposite of a number, we need to find one that shares the same distance from zero. However, he was wrong in believing that the number had to be exactly the same. To find the opposite number, find the same distance from zero in the opposite direction. In this case, the distance from zero is 9. Go in the opposite direction from zero, 9 times. This would give you an answer of -9. Because of this, the opposite of 9 is -9.


Hope this helps! Comment below for more questions.
3 0
3 years ago
Can some one help me please
11111nata11111 [884]

Answer:

2x²√13

Step-by-step explanation:

Step 1:  When there is multiplication under a square root sign (also called a radical sign), you can rewrite the expression as the product of two square roots, like this...

√(52x^4)   can be rewritten as     (√52)(√x^4)

Step 2:  x^4 = x²x², so it's the same thing as saying (x²)², or "x-squared, squared".  Taking the square root of it leaves just x-squared, so this simplifies to

  (√52)x²

Step 3:  When taking the square root of a number that is not a perfect square, you need to do a factor tree to see if you can break the number up into a product of perfect squares, or a perfect square multiplied by a prime number.

52 is an even number, so we an at least divide by 2.  

        52/2  is 26, so we have

                  (26)(2)

2 is a prime number, so we don't break that down any further.

26 is even so it is also divisible by 2,

   26/2 is 13, so we have

     (13)(2)(2)

  which we can write as (13)(4)     (groups pairs of numbers together)

(2)(2) is 4, which results in a perfect square, so we can rewrite √52 as

      (√4)(√13),       since √4  = 2, we simplify this expression to

       2√13

So √(52x^4) breaks down to (√52)(√x^4), which further breaks down into

  (2√13)(x²)

We simplify the expression to 2x²√13

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