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ella [17]
3 years ago
9

Simplify Please help

Mathematics
1 answer:
NeX [460]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Given

- 4x² - 5(x + 3) + x² ← distribute the parenthesis by - 5

= - 4x² - 5x - 15 + x² ← collect like terms

= - 3x² - 5x - 15

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Simplify x^2-9 over x^2-3x
Alla [95]

Answer:

\frac{x+3}{x} or x+3/x

Step-by-step explanation:

Using D.O.T.S (difference of two squares) formula :

a^{2} -b^{2} = (a+b)(a-b)

x^{2} -9= (x+3)(x-3)

Factorise the second bit:

x^{2} -3x = x(x-3)

Now write out this fraction:

\frac{(x+3)(x-3)}{x(x-3)}

Now we can cancel out repeated terms (x-3):

\frac{(x+3)}{x}
This is our final answer:

\frac{x+3}{x}

5 0
3 years ago
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brilliants [131]

Answer:

Step-by-step explanation:

the last one

5 0
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kodGreya [7K]
The distributive property is basically gonna be distributing the outside number among the inside numbers

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Your answer for this would be 6x+18
Hope this helps!
7 0
2 years ago
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What’s the difference???<br> Help please
RideAnS [48]

Answer: D

Step-by-step explanation:

An equation would look like this:

x+1=3

An expression would look like this:

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As you can see, an expression has no equal sign. Conversely, an equation does. That is the primary difference between a(n) (algebraic) expression and equation.

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What is the sum of the 1st square number and the 6th square number?
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Answer:

37

Step-by-step explanation:

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