rrnlrapa rrnlrapa
  • 24-04-2017
  • Mathematics
contestada

Find the value of the lesser root of x2 + 12x + 35 = 0.

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taskmasters
taskmasters taskmasters
  • 06-05-2017
In quadratic equations,
                                   a + b = -B
                                      ab = C
where a and b are the roots, B is the second term, and C is the constant.
Substituting,
                                  a + b = -12
                                      ab = 35
The values of a and b from the equation is -7 and -5. Thus, the lesser root is -7. 
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