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amid [387]
3 years ago
10

Factorise fully : 4(x - y)^2 - 9(x + y)^2​

Mathematics
2 answers:
sergeinik [125]3 years ago
8 0

Answer:

- ( 5x + y ) ( x + 5y )

or

-5x^2 - 5y^2 - 26xy

Archy [21]3 years ago
4 0

Answer:

Step-by-step explanation:

4(x^2-2xy+y^2)-9(x^2+2xy+y^2)

4x^2-8xy+4y^2-9x^2-18xy-9y^2

-5x^2-26xy-5y^2

-5x^2-xy-25xy-5y^2

-x(5x+y)-5y(5x+y)

(-x-5y)(5x+y) or you can also remove the negative one to get

-(x+5y)(5x+y)

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0 and 5 can be in the one's place of a number that has 5 as a factor.
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Which of the following best describes how to use of the addition property of equality to isolate the variable x below?. . 5 = x
sergiy2304 [10]
<span>The best answer is C.add 2 to both sides of the equation.
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2 years ago
Helpppp ahhhhhhh plz
kaheart [24]

Answer:

It's Parallel

Step-by-step explanation:

Perpendicular have to intersect  

3 0
3 years ago
Change the equation of the parent square root function to represent the equation of the graphed function. Enter the correct answ
Dennis_Churaev [7]

The equation of the parent square root function to represent the equation of the graphed function will be, y=√x-2

According to the statement

we have to show the square root function as a equation in the graphical representation.

So,

we know that the definition of a

Graph a diagram showing the relation between variable quantities, typically of two variables and it also show the relation between more than two variables.

Now, we know that the definition of Equation is a mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.

And the equation obtained from the graph is a y=√x-2 by a some calculations in the graph.

So, The equation of the parent square root function to represent the equation of the graphed function will be, y=√x-2

Learn more about Graph here brainly.com/question/4025726

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7 0
1 year ago
This is a few questions that are confusing for me and I only have 22 points but if you help me and actually help instead of stea
neonofarm [45]

Answer:

n<1.3

Step-by-step explanation:

-2.5n+8.7>5.45

add -8.7 on both sides

-2.5n>-3.25

divide both sides by -2.5

n<1.3   (after division inequality sign changes)

answer of Q2 is -4 2/3

answer of Q3 is -2/9

answer of Q4 is -23/3

answer of Q5 is 2^2. 3^2.5

6 0
3 years ago
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