Fibonacci
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x2+12x-13=0 The factor of x2+12x-13 is: (x+13)(x-1) So: x+13 = 0 or x-1 = 0 The answer is: x=-13 or x=1
The answer to the mathematical equation 13 plus 19 is 32.
The series 0, 1, 1, 2, 3, 5, 8, 13... is called the Fibonacci series because it was his book that introduced the series to Western mathematicians. Unlike modern interpretations of the sequence, The Liber Abaci started the sequence at 1.
0, 1, 1, 2, 3, 5, 8, 13, 21, 34... begin with 0, 1, 1, nd add the two previous numbers to get the next number. 1+1=2 1+2=3 2+3=5 3+5=8 5+8=13
Fibonacci method