Factor completely 2x3 + x2 - 18x – 9.
The completelyfactoredform of 2x³ + x² - 18x - 9 is (2x + 1)(x - 3)(x + 3).
We have,
To factor completely the expression 2x³ + x² - 18x - 9, we can follow these steps:
- Step 1: Group the terms in pairs:
(2x³ + x²) + (-18x - 9)
- Step 2: Factor out the greatest commonfactor from each pair:
x²(2x + 1) - 9(2x + 1)
- Step 3: Observe that we have a common binomial factor of (2x + 1).
Factor it out:
(2x + 1)(x² - 9)
- Step 4: The binomial (x² - 9) is a difference of squares and can be further factored as:
(2x + 1)(x - 3)(x + 3)
Therefore,
The completelyfactoredform of 2x³ + x² - 18x - 9 is (2x + 1)(x - 3)(x + 3).
Learn more about expressions here:
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Answer:
F 1/36
Step-by-step explanation:
There are 3+5+10 = 18 markers in the drawer
P (green) = green/total =3/18 = 1/6
P( green,green) = P(green) * P (green)
= 1/6* 1/6 = 1/36
Getting 2 greens in a row with replacement is 1/36
Answer:
The correct answer is 15.
Let's see -
We already know that a number raised to a certain power means repeated multiplication, right? So, all we have to do is multiply 5 × 5 × 5 × 5
436 times! I know, big, right?
This WILL give you a decimal answer and a + sign, so please don't be confused with me!
5 raised to the 436th power is going to give you
=5.635362925894614e + 304
Crazy, right?
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