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
Nadya [2.5K]
2 years ago
12

Factorise the following.​

Mathematics
1 answer:
spin [16.1K]2 years ago
3 0

Answer:

x²(9x– 11)(9x + 11)

Step-by-step explanation:

81x⁴ – 121x²

The expression can be factorised as follow:

81x⁴ – 121x²

x² is common to both term. Thus:

81x⁴ – 121x² = x²(81x² – 121)

Recall:

81 = 9²

121 = 11²

Therefore,

x²(81x² – 121) = x²(9²x² – 11²)

= x²[(9x)² – 11²]

Difference of two squares

x²(9x– 11)(9x + 11)

Therefore,

81x⁴ – 121x² = x²(9x– 11)(9x + 11)

You might be interested in
Ruby wants to buy a bag that costs Php 675.95. If she has saved Php 148.50 for it, how much more does she need?
Akimi4 [234]

Answer:

527•45 is the answer brother

7 0
2 years ago
Am doing math and need help, don't understand it
kirill [66]

Answer:

ok

Step-by-step explanation:

i will ggfxhn. bjgxx

8 0
2 years ago
Read 2 more answers
670000000 in scientific notion
LenKa [72]
6.7 10 squared positive 8
4 0
3 years ago
Read 2 more answers
How do I solve for FOIL
Elanso [62]

Answer:

Do the parentheses first. then the operations. Then solve

Step-by-step explanation:

4 0
2 years ago
Answer asap plllllsssssss​
Kisachek [45]

Answer:

n + 32 = 59.13

Step-by-step explanation:

n + 32 = 59.13

3 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify help me plss cuz I don’t find the answer
    9·1 answer
  • Joanna has a board that is 6 feet long. She cuts it in to pieces that are each 1/4 foot long. Which equation represents the numb
    6·1 answer
  • What is 16/80 simplified?
    10·2 answers
  • At Sara's new job she spent $11.52, $6.48, $5.99, $14.00, and $9.50 on lunch the first week. In the second week, she spent $4 mo
    12·1 answer
  • HELP WILL MARK YOU BRAINLIEST NO GUESSES PLZ!!!!
    7·1 answer
  • 4. The Gold family sold their house for $450,000. They paid a realty
    15·1 answer
  • sonja and jake just got married. they received $4,500 in gift money and deposited it into a savings account that pays 1.85% simp
    6·1 answer
  • PLSSS HELPPP <br> give me the answers and explain
    15·1 answer
  • Help plz:)))I’ll mark u Brainliest
    8·1 answer
  • At a community fund raiser event, bracelets cost $3 and necklaces cost $6. Complete the patterns in
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!