Respuesta :

✰Answer:

9x^2 + 2x + 8.

Step-by-step explanation:

To simplify the expression (2x^2 + 5x + 3) − (−7x^2 + 3x - 5) and write it in standard form, we need to combine like terms.

Step 1: Distribute the negative sign to the terms in the second set of parentheses. This gives us:

(2x^2 + 5x + 3) + (7x^2 - 3x + 5)

Step 2: Combine like terms. Add the coefficients of the terms with the same degree of x. We get:

(2x^2 + 7x^2) + (5x - 3x) + (3 + 5)

Simplifying further, we have:

9x^2 + 2x + 8

So, the simplified expression in standard form is 9x^2 + 2x + 8.

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Answer:

Step-by-step explanation:

2x^2 + 5x + 3 + 7x^2 - 3x + 5

9x^2 + 7x^2 + 2x + 8