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Kobotan [32]
3 years ago
11

12n^2+48n = -n^3-64 factoring polynomial equations

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
4 0

Answer:

Step-by-step explanation:

12n2+48n=−n3−64

Step 1: Subtract -n^3-64 from both sides.

12n2+48n−(−n3−64)=−n3−64−(−n3−64)

n3+12n2+48n+64=0

Step 2: Factor left side of equation.

(n+4)(n+4)(n+4)=0

Step 3: Set factors equal to 0.

n+4=0

n=−4  

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I need help pls on math
Rina8888 [55]

x^2-x-12=x^2+3x-4x-12=x(x+3)-4(x+3)=(x+3)(x-4)\\\\x^2-2x-8=x^2+2x-4x-8=x(x+2)-4(x+2)=(x+2)(x-4)\\\\4x^2=2x\cdot2x



\dfrac{x^2-x-12}{2x}:\dfrac{x^2-2x-8}{4x^2}=\dfrac{x^2-x-12}{2x}\cdot\dfrac{4x^2}{x^2-2x-8}\\\\=\dfrac{(x+3)(x-4)}{2x}\cdot\dfrac{2x\cdot2x}{(x+2)(x-4)}=\dfrac{(x+3)}{1}\cdot\dfrac{2x}{(x+2)}\\\\=\boxed{\dfrac{2x^2+6x}{x+2}}

4 0
3 years ago
Harry charges $4 to babysit for the first hour. For each additional hour, he charges
IRISSAK [1]

Harry would earn total money equal to $32.50 babysitting.

Since Harry charges 50% more for each additional hour as he did for the previous hour, then

he charges 1.5 or 3/2 times as much as he did for the previous hour.

<h3>What is the charge?</h3>

Term Definition Money charge refers to a special expense entry and allows an administrator to track changes in a project's billing.

Harry charges $4 for the first hour.

Harry then charges

3/2 × $4 = $6 for the second hour.

Harry then charges 3

3/2 × $6 = $9 for the third hour.

Harry then charges 3

3/2 × $9 = $ 27/2 = $13.50 for the fourth hour.

Therefore, for 4 hours of babysitting

Harry would earn $4 + $6 + $9 + $13.50 = $32.50.

To learn more about the charge visit:

brainly.com/question/25922783

#SPJ1

5 0
2 years ago
Selena earns $13.15 for every hour she works at the bakery. She already has $14 in her purse. Use x for the number of hours she
serg [7]

Answer:

y=13.15x+14

Step-by-step explanation:

That is the equation, if you need the graph lmk

6 0
3 years ago
Read 2 more answers
Ricky earned $102 in 8 hours
Mariulka [41]
102/8 = 12.75

Your answer would be $12.75

Hope this helps!
4 0
3 years ago
Simplify the expression.
OlgaM077 [116]

Answer:

5.1

Step-by-step explanation:

-44.288-31.6 / -3.1(6-1.2)

Add -44.288 and -31.6

= -75.888 / -3.1(6-1.2)

Subtract 1.2 from 6

= -75.888 / -3.1(4.8)

Multiply -3.1 and 4.8

= -75.888 / -14.88

Divide -75.888 by -14.88

-75.888 / -14.88

=5.1

6 0
3 years ago
Read 2 more answers
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