CalculatorUser

Yes, I know this classic book. I am saving it later this year for my book analysis.

I recommend this science fiction book by a foreign author. Barack Obama during the last years of his term in office bought and read the book, and he thought it was amazing.

The book is called the Three-Body Problem, based on a real life unsolved math problem.

It explores theories on if we are alone in this universe, and questions are progress in technology. This is a book for mature people though, as it contains some math concepts and historical events that are usually learned in the later years of education.

This book is amazing, as it was the first book I read where humanity is a primitive civilization compared to other alien civilizations, contrast to star wars and star trek.

The science is realistic, yet fantastic at the same time. This book is the first book of the three-book trilogy. 

Y intercept is 6, its always the constant. Only time there is more than one intercept is when the graph is a circle or ellipse.

For x intercepts, that is when y is equal to 0.

So you set up your cubic polynomial like this:

-3x^3 - 6x^2 + 3x + 6 = 0

Before you solve, always check if x = 1 is a solution, this will save you A LOT of time.

So substitute in:

-3 - 6 + 3 + 6 = 0

0=0

Looks like x = 1 IS a solution

Another thing is to check if x = -1 is a solution

So, 3 - 6 - 3 + 6 = 0

0 = 0

Looks like x = -1 IS a solution.

This is the standard form : ax^3 + bx^2 + cx + d = 0

Always check if d/a is  a solution.

So checking x = -2

24 + -24 - 6 + 6 = 0

0 = 0

So we know that the x intercepts are 1, -1, and -2.

Yes I agree, i realized the tone of my reply sounded wrong. Oops, I didn't mean to accuse him of anything. 

Wow ! electric! I didn't think it was that simple XD

If he is taking the pre-algebra course, which I am assuming he does. His teachers should've taught him this before they gave this homework.

What does #Whoskeepingcount mean?????

Also this problem is a special case

x² - y² = (x - y) * (x + y)

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Lol, NOW I know why "I am a robot" is added.

You should set a requirement of a minimum number of likes on your profile before the "I am a robot" disappears.

For your answers, all of your steps seem correct!

Does your teacher check for the exact answer? If you are a hundredth of a thousandth off, does your teacher consider it wrong?

Your answers and solution steps seem accurate, so you should be fine.

You can see what other people say though.

Friended you all! Thanks!

LOL I went on to compose one of the longest explanations I ever did.

I got as close to you, and when I realized my answer was falling apart, I just deleted the entire thing and waited for someone else to explain XD.