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9, x, squared, plus, 5, x, plus, 8 and 9x 2 5x 8 and 9x, −7.

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Final answer:

The sum of the expressions 9x^2+5x+8 and 9x-7 is 9x^2 + 14x + 1, which is obtained by combining like terms.

Step-by-step explanation:

To find the sum of the two expressions 9x^2+5x+8 and 9x-7, you combine like terms.

Since there is no x^2 term in the second expression, the x^2 term remains unchanged in the sum.

The x terms (5x and 9x) are like terms and can be combined, and the constant terms (8 and -7) are also like terms and can be combined as well.

So, adding the coefficients of the like terms, we get:

  • The x^2 term: 9x^2
  • The x term: 5x + 9x = 14x
  • The constant term: 8 - 7 = 1

Therefore, the sum of the two expressions is 9x^2 + 14x + 1.

Complete question:

Find the sum of 9x^2+5x+8 and 9x-7

User Constantlearner
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