1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
babunello [35]
3 years ago
10

(x2 + 4)(x2 - 4) please help

Mathematics
1 answer:
VikaD [51]3 years ago
4 0

(x^{2} + 4)(x^{2} - 4)

To solve this question you must FOIL (First, Outside, Inside, Last) like so

First:

(x^2 + 4)(x^2 - 4)

x^2 * x^2

x^4

Outside:

(x^2 + 4)(x^2 - 4)

x^2 * -4

-4x^2

Inside:

(x^2 + 4)(x^2 - 4)

4 * x^2

4x^2

Last:

(x^2 + 4)(x^2 - 4)

4 * -4

-16

Now combine all the products of the FOIL together like so...

x^4 - 4x^2 +4x^2 - 16

Combine like terms:

x^4 - 4x^2 +4x^2 - 16

- 4x^2 +4x^2 = 0

x^4 - 16 <<<This is your answer

Hope this helped!

~Just a girl in love with Shawn Mendes

You might be interested in
Area of square is numerically less than twice its diagonal by 2. Find its Perimeter.
Usimov [2.4K]
2D-a^2=2

2(a√2) -a^2=2

a^2-2√2*a+2=0

2a= 2√2 + √(8-4*2) = 2√2 
hence, perimeter = 4a = 2*2a=2*2√2 = 4√2
8 0
3 years ago
The slope-intercept form given (6,-5) &amp; perpendicular to -5x - 7y = -17.
tatuchka [14]

Answer:

y=\dfrac{7}{5}x-\dfrac{67}{5}

Step-by-step explanation:

<u>Slope-intercept form of a linear equation:</u>

 y=mx+b

where:

  • m is the slope.
  • b is the y-intercept.

<u>Rearrange</u> the given equation so that it is in <u>slope-intercept form</u>:

\implies -5x-7y=-17

\implies -7y=5x-17

\implies y=-\dfrac{5}{7}x+\dfrac{17}{7}

Therefore, the slope of the given equation is -⁵/₇.

If two lines are <u>perpendicular</u> to each other (at right angles), the <u>product of their slopes</u> will be -1.  Therefore, their slopes will be negative reciprocals of each other.

Therefore, the slope of the line perpendicular to the given equation is:

\sf m=\dfrac{7}{5}

<u>Substitute</u> the found <u>slope</u> and the <u>given point</u> (6, -5) into the <u>slope-intercept formula</u> and solve for b:

\implies -5=\dfrac{7}{5}(6)+b

\implies -5=\dfrac{42}{5}+b

\implies b=-\dfrac{67}{5}

<u>Substitute</u> the found slope and the found value of b into the <u>slope-intercept formula</u> to create the equation for the <u>perpendicular line</u>:

\implies y=\dfrac{7}{5}x-\dfrac{67}{5}

Learn more about slope-intercept form here:

brainly.com/question/27317293

brainly.com/question/27926846

8 0
1 year ago
Which of the following sets could be the sides of a right triangle? {2, 3, square root of 13} {2, 2, 4} (1, 2,square root of 3 }
ddd [48]

Answer:

3545344534

Step-by-step explanation:

8 0
3 years ago
Find the slope and y-intercept of the line. 18x + 4y = 112 A)-9/2; 1/28 B)-2/9 ; 28 C)18; 112 D)-9/2; 28
mrs_skeptik [129]

Answer:

The slope is -9/2 and the y intercept is 28

Step-by-step explanation:

We want to put this in slope intercept form

y = mx+b where m is the slope and b is the y intercept

18x + 4y = 112

Subtract 18x from each side

18x+4y-18x = -18x+112

4y = -18x+112

Divide each side by 4

4y/4 = -18x/4 +112/4

y = -9/2x + 28

The slope is -9/2 and the y intercept is 28

5 0
3 years ago
Which equation represents this situation?
Brut [27]

Answer:

4th option: 38t = 532

Step-by-step explanation:

t = 38
?t = 532
14t =532
I don't really know how to explain this but basically, we know 1t is 38, so we know 38 x t will give use 532. This is why I chose the last equation of:
38t = 532
The answer would be 14 trips just for extra information.

3 0
2 years ago
Other questions:
  • 9x – 5 &lt; –41 or 3x + 13 &gt; 7
    7·2 answers
  • Math Mean Help Please!
    6·2 answers
  • A train car is 50.6ft this is 5.8 feet less than 6 times the width what is the width
    5·2 answers
  • Please help ASAP!!!!
    8·1 answer
  • Solve 5x 2 - 7x + 2 = 0 by completing the square. What are the solutions?
    10·2 answers
  • Carlos has a quarter,a nickel and a penny
    13·2 answers
  • Apparantly this Math problem is impossible? Ive posted it like 10 times and yet nobody has answered​
    6·1 answer
  • Explain how the inverse and the contopositivve of a conditional are alike and how they are different
    10·1 answer
  • Distributive property <br> 11(12+u)
    13·2 answers
  • Help i’ll give brainliest!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!