Question

can you help solve this and provide work? -t (5t-7) =-5

Answer 1

    -t(5t - 7) = -5
          -1         -1
     t(5t - 7) = 5
  t(5t) - t(7) = 5
     5t² - 7t = 5
5t² - 7t - 5 = 0
t = -(-7) ± √(-7)² - 4(5)(-5)
                 2(5)
t = 7 ± √49 - 4(-25)
               10
t = 7 ± √49 + 100
             10
t = 7 ± √149
         10
t = 0.7 ± 0.1√149