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OLga [1]
3 years ago
11

1.)What is the only solution of 2x^2 + 8x = x^2 – 16?

Mathematics
2 answers:
Greeley [361]3 years ago
8 0
If you would like to solve the equation 2 * x^2 + 8 * x = x^2 - 16, you can calculate this using the following steps:

<span>2 * x^2 + 8 * x = x^2 - 16
</span><span>2 * x^2 - x^2 + 8 * x + 16 = 0
</span>x^2 + 8 * x + 16 = 0
(x + 4) * (x + 4) = 0
x = - 4

<span>The correct result would be x = - 4.</span>
pogonyaev3 years ago
6 0

Answer:

x= -4

Step-by-step explanation:

took the test:)

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for p(x)= 192 + 21x^3 + 54x^2 - 3x^4 - 264x, use synthetic substitution to evaluate p(1), p(-2), and p(8)
RSB [31]

The value of p(1), p(-2), and p(8) is 0, 744 and 0 respectively

<h3>What is polynomial function?</h3>

Given the function p(x)= 192 + 21x^3 + 54x^2 - 3x^4 - 264x

We are to get the following parameters:

p(1)= 192 + 21(1)^3 + 54(1)^2 - 3(1)^4 - 264(1)\\p(1)=192+21+54-3-264\\p(1)=0

For p(-2)

p(-2)= 192 + 21(-2)^3 + 54(-2)^2 - 3(-2)^4 - 264(-2)\\p(-2)=192-168+216-24+528\\p(-2)=744

For p(8)

p(8)=192 + 21(8)^3 + 54(8)^2 - 3(8)^4 - 264(8)\\p(8)=192+10,752+3,456-12,288-2,112\\p(-2)=0

Hence the value of p(1), p(-2), and p(8) is 0, 744 and 0 respectively

Learn more on polynomials here: brainly.com/question/4142886

7 0
3 years ago
Solve for t. d= -16t^2 + 12
IRINA_888 [86]

Answer:

t=√d-12/4 and t=√-d-12/4, d≥12

Step-by-step explanation:

Hope this helps.

3 0
3 years ago
What is 6x - 2 if x = 5
lozanna [386]
Replace x with 5 so
6 (5) -2
30-2
28
7 0
4 years ago
Read 2 more answers
Determine the value of the variable in the simplified expressions. What is the value of x in this simplified expression? (Negati
zavuch27 [327]

Answer:

X= 7

Y=5

I just took the test.

8 0
3 years ago
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Answer The question... What is the slope of the line passing through the points (2,-5 ) and 4,1)?
Marrrta [24]

Answer:

undefined

Step-by-step explanation:

slope= y2-y1 over x2-x1

1- -5 over 2-2

6 over 0

undefined

3 0
4 years ago
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