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
inysia [295]
3 years ago
6

How to i expand this ? x3 (3x - 5)

Mathematics
1 answer:
Nikitich [7]3 years ago
5 0
Use the distributive formula

a(b - c) = ab - ac

x^3(3x - 5) = \boxed{\bf{3x^4 - 5x^3}}
You might be interested in
What is the midpoint of QR. Q(2,4) and R(-3,9)
Eduardwww [97]

Answer:

The answer is

( -  \frac{1}{2}  \: , \:  \frac{13}{2})  \\

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

M = (  \frac{x1 + x2}{2} , \:  \frac{y1 + y2}{2} )\\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

Q(2,4) and R(-3,9)

The midpoint is

M = ( \frac{2 - 3}{2}  \:  , \:  \frac{9 + 4}{2} ) \\

We have the final answer as

( -  \frac{1}{2}  \: , \:  \frac{13}{2})  \\

Hope this helps you

6 0
3 years ago
1. Write the slope-intercept form of the equation that passes through the point (0, 1) and is parallel to the line y = 3x - 5
gregori [183]

Answer:

y = 3x + 1

Step-by-step explanation:

If two lines are parallel to each other, they have the same slope.

The first line is Y = 3X - 5. Its slope is 3. A line parallel to this one will also have a slope of 3.

Plug this value (3) into your standard point-slope equation of y = mx + b.

y = 3x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (0, 1). Plug in the x and y values into the x and y of the standard equation.

1 = 3(0) + b

To find b, multiply the slope and the input of x (0)

1 = 0 + b

Now, add 0 to both sides to isolate b.

1 = b

Plug this into your standard equation.

y = 3x + 1

This equation is parallel to your given equation (y = 3x - 5) and contains point (0, 1)

Hope this helps!

3 0
3 years ago
Da<br> A<br> Solve the equation 2x^2+3=0
Anika [276]

Answer:

x = ±i(√6 / 2)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

  • Solving quadratics

<u>Algebra II</u>

Imaginary root i

  • √-1 = i

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

2x² + 3 = 0

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Subtraction Property of Equality] Subtract 3 on both sides:                        2x² = -3
  2. [Division Property of Equality] Divide 2 on both sides:                                  x² = -3/2
  3. [Equality Property] Square root both sides:                                                    x = ±√(-3/2)
  4. Simplify:                                                                                                             x = ±i(√6 / 2)
4 0
3 years ago
-7 (-7)^-4 plz help plz
Natali5045456 [20]

Answer: -1/343

Step-by-step explanation:

-7(-7)^-4

First, re-write as positive exponents:

-7(-1/7^4)

Next, simplify:

-1/7^3 (you can simplify using exponent rules)

Simplify 7^3 :

7(7)(7)

49(7)

343.

Insert to original expression:

-1/343.

5 0
3 years ago
Maddy and Caitlin spend a certain amount of money from their money box each month to buy bracelet-making supplies.
fomenos
Solutions 

We know that <span>Function 1 shows a greater rate of change, because Maddy spends $20 each month and Caitlin spends $18. 
</span>
Maddy spends 2 dollars more. 

Therefore the correct answer is the last option.  
<span />
8 0
3 years ago
Read 2 more answers
Other questions:
  • Approximately _____ percent of the population are diagnosed with panic disorder using DSM criteria.
    6·1 answer
  • Which graph represents the function f(x)=2⋅4x ? PLEASE HELP!!!
    7·2 answers
  • How do you solve 10n - 40
    14·1 answer
  • You bike 39 miles in 5 hour find the unit rate per mile
    6·1 answer
  • How many times is 42 going to 5647
    12·2 answers
  • Solve the system of equations.<br>2r+3s=-5<br>3r+5s=-9<br>Type an ordered pair​​
    13·1 answer
  • Ummm ill make brainliest
    7·1 answer
  • "A 20-foot ladder leans against the side of a house. The bottom of the ladder is 6 feet away from the house. What is the measure
    10·1 answer
  • Solve<br> 1/2<br> x + 3 &lt;4x - 7
    13·1 answer
  • Yooooo please help lol
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!