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aleksklad [387]
4 years ago
7

C *c-5c-24=0

Mathematics
1 answer:
Keith_Richards [23]4 years ago
8 0
C² - 5c - 24 = 0
c = <u>-(-5) +/- √((-5)² - 4(1)(-24))</u>
                         2(1)
c = <u>5 +/- √(25 + 96)</u>
                  2
c = <u>5 +/- √(121)
</u>               2 <u>
</u>c = <u>5 +/- 11
</u>            2
c = <u>5 + 11</u>      c = <u>5 - 11</u>
          2                    2
c = <u>16</u>            c = <u>-6</u>
       2                    2
c = 8              c = -3
<u />
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