Question

Select the correct answer.

Which expression is equivalent to the given expression?
-2x² + 8x 9 + 4x + 7x² + 2
OA. -92 12x + 11
B.
-5x² + 4x + 11
O c.
522 + 12x - 7
O D. -9x² + 4x - 7

Answer 1

The expression is simplified to 5x² + 12x + 11.

Step-by-step explanation:

The given expression is: -2x² + 8x 9 + 4x + 7x² + 2.

To simplify this expression, we need to combine like terms. Like terms are terms that have the same variable(s) raised to the same exponent(s). First, let's combine the like terms with the same variables and exponents:

-2x² + 7x² = 5x²

Next, let's combine the like terms with the same variable:

8x + 4x = 12x

Now, our simplified expression becomes:

5x² + 12x + 9 + 2

Finally, combine the constant terms:

9 + 2 = 11

So, the expression -2x² + 8x 9 + 4x + 7x² + 2 is equivalent to 5x² + 12x + 11.

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