corrah15
14.12.2020 •
Mathematics
True or False ( and justity : When multiplying polynomials of degree or greater together the degree of the product polynomial will be greater than either of the original factors.AP
Solved
Show answers
More tips
- S Society and Politics Как правильно поддерживать температуру в квартире для здоровья...
- L Leisure and Entertainment How to Make a Crab Trap in Just a Few Minutes...
- H Health and Medicine How Much Does Abortion Cost? Expert Answers and Insights...
- S Sport How to Build Arm Muscles? Effective Exercises and Tips...
- H Health and Medicine When can it be said that a person has a normal pulse?...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
Answers on questions: Mathematics
- M Mathematics A ship leaves port and travels 21km on a bearing of 032° and then 45 km on a bearing of 287° . a. Calculate its distance from the portb. Calculate the bearing of the port from the...
- M Mathematics WILL MARK BRAINLIEST...
- M Mathematics Express 72km/h in meter per sec...
- M Mathematics Arthur invested $ 5,299 dollars in May 20th 1980 at an interest rate of 5% per year. If the interest rate is compounded semi-annually, determine the amount in the account on May...
- M Mathematics Brandon is building a deck in the shape of a rectangle around a circular pool. The pool is 16 feet across. If the deck is 28 feet by 23 feet, how many square feet of wood is needed...
- M Mathematics An elementary school teacher bought a bag of candy and brought it to school as a reward for the entire class, planning to give it out at the end of school day. The teacher counted...
- M Mathematics A candidate for political office wants to determine if there is a dif- ference in his popularity between men and women. For this, he collects a sample of 250 men and 250 women and...
- M Mathematics What is the probability that x is between 25 and 30?...
- M Mathematics Mr.kim has 77 paper clips . he also has 14 pencils. how many more paper clips than pencils does mr. kim have?...
- M Mathematics Find the value of k that would make the left side of the equation a perfect square trinomial. show your work. 9x^2-kx+4=0...
Ответ:
True
Step-by-step explanation:
plz mark brainliest!
Ответ:
Since we want to solve for the variable x, we want to isolate x
a²x + (a - 1) = (a + 1)x ⇒ Distribute x to (a+1). Also, remove parentheses
a²x + a - 1 = ax + x ⇒ Subtract a from both sides
a²x - 1 = ax + x - a ⇒ Add 1 to both sides
a²x = ax + x - a + 1 ⇒ Subtract (ax + x) from both sides
a²x - (ax + x)= ax + x - a + 1 - (ax+x) ⇒ Simplify. Remember that multiplying positive by negative = negative
a²x - ax - x = ax + x - a + 1 - ax - x ⇒ Simplify
a²x - ax - x = -a + 1 ⇒ Factor out the x from a²x - ax - x
x(a² - a - 1) = -a + 1 ⇒ Divide both sides by (a² - a - 1)
x = (-a + 1) / (a² - a - 1)
However, we need to make sure that the denominator does not equal 0. Therefore, you set the denominator = 0 (just use the quadratic formula for this), and it gives that the denominator =0 when a = (1+√5)/2 AND (1-√5)/2
Therefore, the final answer is
x = (-a + 1) / (a² - a - 1) given that a ≠ (1+√5)/2, a ≠ (1-√5)/2