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
V125BC [204]
3 years ago
7

Simplify this expression​

Mathematics
2 answers:
inessss [21]3 years ago
7 0

Answer:

3x^2+27y^2-18xy

Step-by-step explanation:

3(x-3y)^2

3 [(x-3y)(x-3y)]

3 [x^2-3xy-3xy+9y^2]

3 [x^2-6xy+9y^2]

open d bracket

3x^2-18xy+27y^2

rearrange

3x^2+27y^2-18xy

vodomira [7]3 years ago
3 0

Answer:

3x² - 18xy + 27y²

Step-by-step explanation:

= 3 ( x - 3y )²

= 3 ( x² - 2 * -3y * x + ( -3y)²)

= 3( x² - 6xy +9y²)

= 3x² - 18xy + 27y²

You might be interested in
Describe two polygons with two vertices and two sides
Nastasia [14]
Well, a polygon is just a generic shape. Triangle, Quadrilateral, Pentagon,Hexagon, Octagon, Decagon, etc. Sides are the lines that meet to make up the polygon, and vertices are the corners where the sides meet. Here are some examples: 

<span>Triangle Quadrilateral (square, rectangle) </span>
<span>3 sides 4 sides </span>
<span>3 vertices 4 vertices </span>

<span>I hope this helps. :)</span>
5 0
3 years ago
Please help this has bean troubling me for the past 2 hours.<br><br>find NM​
Leviafan [203]

Answer:

NM = 15

Step-by-step explanation:

Given a secant and a tangent from an external point to the circle, then

The square of the measure of the tangent is equal to the product of the secant's external part and the entire secant, that is

(x + 3)² = (x - 3)(x - 3 + 16)

(x + 3)² = (x - 3)(x + 13) ← expand both sides using FOIL

x² + 6x + 9 = x² + 10x - 39 ( subtract x² + 10x from both sides )

- 4x + 9 = - 39 ( subtract 9 from both sides )

- 4x = - 48 ( divide both sides by - 4 )

x = 12

Then

NM = x + 3 = 12 + 3 = 15

7 0
3 years ago
Apply the distributive property to create an equivalent expression.
ira [324]

Answer:

12e - 6f -8

Step-by-step explanation:

(6e−3f−4)⋅2

Multiply the 2 by each term inside the parentheses

2*6e -2*3f -4*2

12e - 6f -8

4 0
3 years ago
Write an equation for the line in slope-intercept form.
STatiana [176]

Answer:

y=2x+2

Step-by-step explanation:

the equation for slope intercept form is y=mx+b where b is the y intercept and m is the slope. From the graph we can see that where x is 0 y is 2 which makes 2 be the y intercept, and when x is 1 y is 4 which then you replace y for 4 and x for 1 which would be 4=m(1)+2,now u subtract 2 from both sides which leaves you with 2=m(1) and m times 1 is m so now your left with 2=m which means the slop is 2

6 0
4 years ago
What’s the area of a circle with a radius of 1 meter. Express in terms of pie
Anni [7]

Answer:

A=pi

Step-by-step explanation:

The formula of the area of a circle is A=pi*r^2 where r=radius.

In this problem, you have radius of 1 meter. So just plug that into the equation and solve for the area.

A=pi*(1)^2=pi*1*1=pi*1=pi

A=pi

8 0
3 years ago
Other questions:
  • Solve by factoring: 8p2 - 64p = 0
    9·1 answer
  • What is the quotient of 2 divided by 1/2?
    14·2 answers
  • A two stage experiment consists of rolling a die and noting the number and then flipping a coin and noting heads or tails. how m
    6·1 answer
  • In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,075 a
    10·1 answer
  • What is the square root of -1
    12·2 answers
  • Simplify 15x^5y^5/25xy^9
    9·1 answer
  • Jimmy, Johny and Jolly went to the market to buy some presents for Secret Santa celebration at school. Three of them together sp
    13·1 answer
  • Does anybody know the answer?
    5·1 answer
  • Help Please, will mark brainliest, and please dont lie.
    5·1 answer
  • How do i do this? very confused
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!