How do you solve 8n squared+4n-16 = - n squared using the quadratic formula?

Question

Mathematics

Tony

23 April, 03:07

How do you solve 8n squared+4n-16 = - n squared using the quadratic formula?

+4

Answers (1)

Know the Answer?

Yamilet Herrera · Answer 1

8n² + 4n - 16 = - n²

8n² + n² + 4n - 16 = - n² + n²

9n² + 4n - 16 = 0

n = - 4 + / - √ (4² - 4 (9) (-16))

2 (9)

n = - 4 + / - √ (16 + 576)

18

n = - 4 + / - √ (592)

18

n = - 4 + / - 24.33

18

n = - 4 + 24.33 n = - 4 - 24.33

18 18

n = 20.33 n = - 28.33

18 18

n = 1.1294 n = - 1.57389