3 years ago

Which is a equivalent to (9y^2-4x)

Mathematics

1 answer:

damaskus [11]3 years ago

5 0

I believe the answer is 81x^4-16x^2 difference of squares

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Find the square. (1/4A + 1/4B)^2<br><br> a) 1/16A^2 + 1/8AB + 1/16B^2<br> b) 1/4A^2 + 1/8AB + 1/4B^2

alisha [4.7K]

$(a + b)^2 = a^2 + 2ab + b^2$

$(\dfrac{1}{4}A + \dfrac{1}{4}B)^2 =$

$= \dfrac{1}{16}A^2 + \dfrac{1}{8}AB + \dfrac{1}{16}B^2$

Answer: A.

Another way to solve by factoring 1/4.

$(\dfrac{1}{4}A + \dfrac{1}{4}B)^2 =$

$= [\dfrac{1}{4}(A + B)]^2$

$= (\dfrac{1}{4})^2(A + B)^2$

$= \dfrac{1}{16}(A^2 + 2AB + B^2)$

$= \dfrac{1}{16}A^2 + \dfrac{1}{16}2AB + \dfrac{1}{16}B)^2$

$= \dfrac{1}{16}A^2 + \dfrac{1}{8}AB + \dfrac{1}{16}B)^2$

6 0

3 years ago

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A retired math teacher takes his niece shopping. He tells his niece that they can spend x dollars and x minus 49.5 equals 15. Wh

kakasveta [241]

X - 49.5 = 15
x = 15 + 49.5
x = 64.5

8 0

3 years ago

5(3m+n)?

sergij07 [2.7K]

Answer: 15m + 5n

Step-by-step explanation:

so, first off, we take the number outside of the parentheses and multiply it by everything that's inside of the parentheses.

(5)3m + 5(n)

then, we just multiply all of those together.

15m + 5n

3 0

3 years ago

.,..................................

Masteriza [31]

What do you want us to answer??

7 0

3 years ago

What is x equal to in the problem 10+3(x+2)=36? Please show your work.

scZoUnD [109]

Answer:

x = 6 2/3

Step-by-step explanation:

10+3(x+2)=36

10+3x+6=36 Solve inside the parenthesis.

16+3x=36 Combine like terms.

-16 -16 Subtract 16 from both sides.

3x/3=20/3 Divide both sides by 3.

x=6 2/3 The answer is x= 6 2/3, or 6.66666666666667

5 0

3 years ago

Read 2 more answers