Type the correct answer in each box. Consider the sum of cubes identity: a3 + b3 = (a + b)(a2 − ab + b2). For the polynomial 8x3
1 answer:
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The answer is: 29 rows of seats.
The explanation is shown below:
1. Let's call the number of seats in a row.
2. You have that the number of rows is 4 less than the number of seats in each row ().
3. The total seats, which is 957, is obtained by multiplying the number of seats in a row by the numbers of rows. Therefore, you can write the following expression:
4. Solve for . You can use the Quadratic formula, which is:
Where:
5. Substitute values:
6. You must choose the positive value. Therefore, the number of rows of seats is: