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
eduard
3 years ago
5

What is the expression in factored form? 9x^2-4 please shows steps

Mathematics
2 answers:
gladu [14]3 years ago
5 0
This expression can be factorized using the difference of squares which can be illustrated as follows:
A^2 - B^2 = (A+B)(A-B)

In the given example:
sqrt(9x^2) = 3x
sqrt(4) = 2
and the two squares are separated by a negative sign
Therefore, the difference of squares is applicable

Based on this, factoring the given expression would give us:
9x^2 - 4 = (3x+2)(3x-2)
Andrews [41]3 years ago
3 0
9x^{2}-4 given
Use the difference of squares theorom. i.e.a^{2}-b^{2}=(a+b)(a-b).
In this case, a is 3x (the sqaure root od 9x^{2}) and b is 2(the sqaure root of 4). So we have:
(3x-2)(3x+2)
You might be interested in
Danielle stayed in three different cities (Washington, D.C., Atlanta, Georgia, and Dallas, Texas) for a total of 22 nights. She
ziro4ka [17]

Answer:

do you know how to count

Step-by-step explanation:

you had putten 5 cities not 3

4 0
3 years ago
May u please help me ill give out the brainly
kozerog [31]

Answer:

sorry type it out

Step-by-step explanation:

3 0
3 years ago
A recipe calls for 4/5 cup of milk and 1/2 cup of rice. How much more milk than rice is needed?
Norma-Jean [14]

Step-by-step explanation:

jdjssnnajxsnanandjsu

8 0
3 years ago
Read 2 more answers
Emma runs 3/4 mile in 6 minutes. Joanie runs 1 1/2 miles in 11 minutes. Whose speed is greater?
Whitepunk [10]
Amma solve it first then ill tell you what i got as the answer:)
3 0
3 years ago
Solve by completing the square
Sveta_85 [38]

\qquad\qquad\huge\underline{{\sf Answer}}☂

Let's solve ~

\qquad \sf  \dashrightarrow \:  {x}^{2} + 8x = 33

\qquad \sf  \dashrightarrow \:  {x}^{2} + 8x +16 = 33 + 16

\qquad \sf  \dashrightarrow \: (x + 4) {}^{2}  = 49

\qquad \sf  \dashrightarrow \: x + 4 =  \sqrt{49}

\qquad \sf  \dashrightarrow \: x + 4 =  \pm7

Hence, there are two solutions ~

  • 1. when x + 4 = 7

\qquad \sf  \dashrightarrow \: x + 4 = 7

\qquad \sf  \dashrightarrow \: x = 7 - 4

\qquad \sf  \dashrightarrow \: x = 3

  • 2. when x + 4 = -7

\qquad \sf  \dashrightarrow \: x + 4 =  - 7

\qquad \sf  \dashrightarrow \: x  =  - 7 - 4

\qquad \sf  \dashrightarrow \: x  =   - 11

I hope you understood ~

8 0
2 years ago
Other questions:
  • Mr. King usually prices the umbrellas in his store at $8 each. However, on rainy days he increases the price by 75%. How much do
    12·1 answer
  • What is the equation of the following line? Be sure to scroll down first to see
    15·1 answer
  • Lewis walked 9/10 of a mile. His friend walked 2/5 of that with him. How many Miles did his friend walk with him?
    8·1 answer
  • I NEED THIS IN FIVE MINUTES.
    8·1 answer
  • 60 PTS WILL MARK BRAINLIEST IF CORRECT {see image}
    11·2 answers
  • How was William Kamkwamba a teenager in a small village able to build a
    5·1 answer
  • 5(24+36 divided 1/2)
    7·2 answers
  • Here you go ☺️ I NEED HELP SO HELP PLS
    10·2 answers
  • Find the volume, V, of the solid obtained by rotating the bounded region in the first quadrant enclosed by the graphs of
    9·1 answer
  • PLEASE HELP ME ASAP!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!