Expansion of (2/3x - 3/2x - 1)^2
In this article, we will learn how to expand the expression (2/3x - 3/2x - 1)^2
. Expanding an expression like this can be a bit challenging, but with the right steps, you'll be able to do it easily.
Step 1: Simplify the Expression Inside the Parentheses
Before we expand the expression, let's simplify the expression inside the parentheses. We can do this by combining like terms.
2/3x - 3/2x - 1 = (4x - 9x)/6 - 1
= (-5x)/6 - 1
So, the simplified expression is (-5x)/6 - 1
.
Step 2: Expand the Expression
Now that we have simplified the expression inside the parentheses, we can expand the expression using the rule of exponentiation, which states that (a + b)^2 = a^2 + 2ab + b^2
.
Let's apply this rule to our simplified expression:
((-5x)/6 - 1)^2 = ((-5x)/6)^2 + 2((-5x)/6)(-1) + (-1)^2
Step 3: Expand Each Term
Now, let's expand each term:
((-5x)/6)^2 = 25x^2/36
2((-5x)/6)(-1) = 10x/6
(-1)^2 = 1
Step 4: Combine the Terms
Finally, let's combine the terms:
((-5x)/6 - 1)^2 = 25x^2/36 + 10x/6 + 1
And that's the expanded expression!
The Final Answer
So, the expansion of (2/3x - 3/2x - 1)^2
is:
25x^2/36 + 10x/6 + 1
I hope this helps! Let me know if you have any questions or need further clarification.