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WARRIOR [948]
3 years ago
8

Simplify completely 8x^3 ÷ 6x^2 - 4x / -2x

Mathematics
2 answers:
artcher [175]3 years ago
3 0

Answer:

Simplified form is -(\frac{8x^{3}}{3x-2}).

Step-by-step explanation:

The given expression is 8x^{3}\div \frac{6x^{2}-4x}{-2x}

We can rewrite the given expression as = 8x^{3}\times (-\frac{2x}{{6x^{2}-4x}})

Further simplification of the expression gives =\frac{-16x^{4}}{6x^{2}-4x}

=\frac{-16x^{4}}{2x(3x-2)}

=-(\frac{8x^{3}}{3x-2})

So the simplified of the given expression is =[tex]-(\frac{8x^{3}}{3x-2})

Serhud [2]3 years ago
3 0

<u>Answer:</u>

-\frac {8x^3} {3x-2}

<u>Step-by-step explanation:</u>

We are given the following expression and we are two divide these two terms:

\frac {8x^3} {\frac {6x^2 - 4x} {-2x} }

To simplify this, we will take the reciprocal of the fraction in the denominator of this expression to change it to multiplication.

8x^3 × \frac {-2x} {6x^2 - 4x}

Taking the common terms out to get:

8x^3 × \frac{-2x}{2x(3x-2)}

Cancelling the like terms to get:

-\frac{8x^3}{3x-2}

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Paraphin [41]

Answer:

A. The solutions are x=3i,\:x=-3i.

B. The factored form of the quadratic expression x^2+9=(x-3i)(x+3i)

Step-by-step explanation:

A. To find the solutions to the quadratic equation x^2+9=0 you must:

\mathrm{Subtract\:}9\mathrm{\:from\:both\:sides}\\\\x^2+9-9=0-9\\\\\mathrm{Simplify}\\\\x^2=-9\\\\\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}\\\\x=\sqrt{-9},\:x=-\sqrt{-9}

x=\sqrt{-9} = \sqrt{-1}\sqrt{9}=\sqrt{9}i=3i\\\\x=-\sqrt{-9}=-\sqrt{-1}\sqrt{9}=-\sqrt{9}i=-3i

The solutions are:

x=3i,\:x=-3i

B. Two expressions are equivalent to each other if they represent the same value no matter which values we choose for the variables.

To factor x^2+9:

First, multiply the constant in the polynomial by i^2 where i^2 is equal to -1.

x^2+9i^2

Since both terms are perfect squares, factor using the difference of squares formula

a^2-i^2=(a+i)(a-i)

x^2+9=x^2+9i^2=\left(-3i+x\right)\left(3i+x\right)

5 0
3 years ago
A 165 inch pipe is cut into two pieces. One piece is four times the length of the other.Find the length of the shorter piece. Ho
coldgirl [10]

Answer:

Length of longer length=132 inches

Length of shorter length=33 inches

Step-by-step explanation:

Step 1: Determine total length of pipe

Total length of pipe=165 inches

Step 2: Derive expression for all the lengths

We can express all these lengths as follows;

L=l1+l2

where;

L=total length

l1=length of longer piece

l2=length of shorter piece

but;

length of longer piece=4×length of shorter piece

replacing;

l1=4l2

replacing;

L=165

l1=4×l2

165=l 2+4 l2

5 l2=165

l2=165/5

l2=33 inches

l1=length of longer length=33×4=132 inches

l2=length of shorter length=33 inches

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levacccp [35]

Answer:

2.2

Step-by-step explanation:

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Can someone please help me out ASAP
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The answer is x=2 i hope this helps !!
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Answer:

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