Julie00idn
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How do you solve 8n squared+4n-16= -n squared using the quadratic formula?

Sagot :

Panoyinidn
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
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