Question

The sum of three times a number and it's square is eight more than five times the number what is the number?

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

4

Step-by-step explanation:

      3x + x² = 5x + 8

x² + -2x - 8 = 0

(x-4)(x+2) = 0

x-4 = 0

  x = 4

x+2 = 0

  x = -2

use x = 4

check:

3(4) + (4)² = 5(4) + 8

       28    =   28

HOPE IT HELPS YOU