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
JulijaS [17]
3 years ago
12

Simplify the expression –3(x + 3)2 – 3 + 3x. What is the simplified expression in standard form?

Mathematics
2 answers:
andrew11 [14]3 years ago
8 0

For this case we must simplify the following expression:

-3 (x + 3) ^ 2-3 + 3x

We solve the parenthesis:

-3 (x ^ 2 + 2 (x) (3) + 3 ^ 2) -3 + 3x =\\-3 (x ^ 2 + 6x + 9) -3 + 3x =

We apply distributive property to the terms within parentheses:

-3x ^ 2-18x-27-3 + 3x =

We add similar terms:

-3x ^ 2-18x + 3x-27-3 =\\-3x ^ 2-15x-30

Answer:

-3x ^ 2-15x-30

NNADVOKAT [17]3 years ago
7 0

Answer: -3x^2-15x-30

Step-by-step explanation:

We need to remember that (a\±b)^2=a^2\±2ab+b^2

Knowing this, we can simplify  the expression:

-3(x + 3)^2 - 3 + 3x=-3[x^2+2(x)(3)+3^2]-3+3x=-3[x^2+6x+9]-3+3x

Apply Distributive property:

=-3x^2-18x-27-3+3x

Add like like terms:

=-3x^2-15x-30

Since it has the form ax^2+bx+c, it is already expressed in Standad form.

You might be interested in
b In a hostel. 50 students have food enough for 54 days. How many students should be added in de the hostel so that the food is
lys-0071 [83]
Everybody will one thing a day
6 0
3 years ago
In another problem in my homework, it says look at problem 4, problem 4 has to do with the question about seans team when it had
notka56 [123]
I dont know because I’m confused
3 0
3 years ago
Jesse and mark are jogging along the route shown at a rate of 12 miles per hour. they start by jogging south along capitol stree
kotykmax [81]

Answer:

12457

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
How do i quit branily
Andre45 [30]

Answer:

look it up

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help again with the following 2 questions
yuradex [85]
Perimeter top one:
5+1+2+3+3+4= 18in

Perimeter bottom one:
6+1+4+3+2+4= 20in


3 0
3 years ago
Other questions:
  • 15 is what percentage of 30
    10·2 answers
  • The volume of a cylinder can is 1.54 litre and area of base is 77cm^2 Find its height​
    14·1 answer
  • An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and unloading riders more effic
    8·1 answer
  • The NCAA basketball tournament begins with 64 teams and consists of 6 rounds of play.  The winners of the first round play again
    5·2 answers
  • Find the 120th term, given the first term and the common difference. <br> a =52 and d=12<br>  1
    8·1 answer
  • PLZZ HELP ILL GIVE BRAINLIEST AND DO NOT TYPE NO LINK WITH YALL LAZY AHH
    15·2 answers
  • For what value of p makes this equation true?
    6·1 answer
  • In​ randomized, double-blind clinical trials of a new​ vaccine, rats were randomly divided into two groups. Subjects in group 1
    13·1 answer
  • A business man invested 10,500 in a company and the value increases 3.5% each year. How much will be the investment after 12 yea
    8·2 answers
  • Which pair or pairs of polygons are congruent?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!