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Write the following expression as a simplified polynomial:

[tex]\[
(x+2)^2 - 3(x+2) - 4
\][/tex]

Answer: [tex]\(\square\)[/tex]


Sagot :

Sure! Let's simplify the given expression step-by-step.

We start with the given expression:
[tex]\[ (x + 2)^2 - 3(x + 2) - 4 \][/tex]

Step 1: Expand [tex]\((x + 2)^2\)[/tex]

First, let's expand the squared term:
[tex]\[ (x + 2)^2 = x^2 + 4x + 4 \][/tex]

Step 2: Distribute [tex]\(-3\)[/tex] over [tex]\((x + 2)\)[/tex]

Next, distribute [tex]\(-3\)[/tex] over the term [tex]\((x + 2)\)[/tex]:
[tex]\[ -3(x + 2) = -3x - 6 \][/tex]

Step 3: Substitute the expanded terms back into the expression

Now we substitute these expanded terms back into the original expression:
[tex]\[ (x^2 + 4x + 4) - (3x + 6) - 4 \][/tex]

Step 4: Combine like terms

Now, let's combine the like terms:
[tex]\[ x^2 + 4x + 4 - 3x - 6 - 4 \][/tex]

Combine the [tex]\( x \)[/tex]-terms:
[tex]\[ x^2 + (4x - 3x) = x^2 + x \][/tex]

Combine the constant terms:
[tex]\[ 4 - 6 - 4 = -6 \][/tex]

Final simplified polynomial:

Putting it all together, we get:
[tex]\[ x^2 + x - 6 \][/tex]

So, the expression simplified to a polynomial is:
[tex]\[ x^2 + x - 6 \][/tex]