Fill in the blanks to complete the polynomial equation that shows the subtraction of the second expression from the first and the resulting difference.

9x^2 + ___x + 13

-2x^2 + 12x + ___

___x^2 + 5x + 2

1 answer

To find the missing terms in the polynomial equation, we start with the subtraction of the second expression from the first. We have the following two expressions:

  1. \(9x^2 + __x + 13\)
  2. \(-2x^2 + 12x + __\)

We want to subtract the second expression from the first:

\[ (9x^2 + __x + 13) - (-2x^2 + 12x + __) = __x^2 + 5x + 2 \]

When we simplify the left side, we get:

\[ 9x^2 + __x + 13 + 2x^2 - 12x - __ \]

This simplifies to:

\[ (9x^2 + 2x^2) + (__x - 12x) + (13 - __) \]

This results in:

\[ (11x^2) + (__ - 12)x + (13 - __) \]

Now, we want this to equal the expression on the right side:

\[ __x^2 + 5x + 2 \]

From this, we can set up equations based on the coefficients:

  1. For \(x^2\): \[ 11 = __ \quad \Rightarrow \quad __ = 11 \]

  2. For \(x\): \[ __ - 12 = 5 \quad \Rightarrow \quad __ = 5 + 12 = 17 \]

  3. For the constant term: \[ 13 - __ = 2 \quad \Rightarrow \quad __ = 13 - 2 = 11 \]

Putting it all together, we have:

  • The missing coefficient for \(x\) in the first expression is 17.
  • The missing term in the second expression is 11.
  • The missing coefficient for the constant term in the second expression is 11.

So, the completed polynomial equation is:

\[ 9x^2 + 17x + 13 - (-2x^2 + 12x + 11) = 11x^2 + 5x + 2 \]

Final answers:

  • 17 for the \(x\) term in the first expression.
  • 11 for the constant term in the second expression.
  • 11 for the \(x^2\) term in the resulting difference.
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