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Nonamiya [84]
3 years ago
5

Solve the quadratic by taking the square root

Mathematics
1 answer:
Veronika [31]3 years ago
4 0

Answer:

Step-by-step explanation:

-7x²=-448

x²=64

x=±8

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8x2 − 5 + 7x4 − 9x − x5
Veseljchak [2.6K]

Answer:

=-\left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

Step-by-step explanation:

Factor out comon Term -1

=-\left(x^5-7x^4-8x^2+9x+5\right)

Factor x^5-7x^4-8x^2+9x+5:\quad \left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

x^5-7x^4-8x^2+9x+5

Use the rational root theorem

a_0=5,\:\quad a_n=1

The dividers of a_{0}: 1, 5, The dividers of a_n: 1

Therefore, check the following rational numbers: ±\frac{1,\:5}{1}

\frac{1}{1} is a root of the expression, so factor out x-1

=\left(x-1\right)\frac{x^5-7x^4-8x^2+9x+5}{x-1}

\frac{x^5-7x^4-8x^2+9x+5}{x-1}=x^4-6x^3-6x^2-14x-5

=x^4-6x^3-6x^2-14x-5

=-\left(x-1\right)\left(x^4-6x^3-6x^2-14x-5\right)

8 0
3 years ago
1/3x+y=4 help please?
professor190 [17]
\frac{1}{3}x+y=4\ \ \ \ \ |subtract\ \frac{1}{3}x\ from\ both\ sides\\\\y=4-\frac{1}{3}x
8 0
2 years ago
Read 2 more answers
A total of 110 gallons of water can flow through hose b in 10 my
loris [4]
Answer: Hose b has a faster hose rate
please thank this answer!:)
3 0
3 years ago
How many solutions does the following equation have?<br> -17(y-2)=-17y+64−17(y−2)=−17y+64
blondinia [14]

Answer:

It has 2 solutions

Step-by-step explanation:

Solution 1

-17(y - 2) = -17y + 64 - 17(y - 2)

Solution 2

-17y + 64 - 17(y - 2) = -17y + 64

5 0
3 years ago
The radius of a basketball hoop is 9 inches. What expression can be used to find the hoop's circumference in inches?
oksano4ka [1.4K]
C=2pir
r=9
c=2pi9
c=18pi
if we aprox pi=3.141592
c=56.54865 inches
4 0
3 years ago
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