Use Bairstow’s method to determine the roots of
(a) f(x) = −2 + 6.2x – 4x2 + 0.7x3
(b) f(x) = 9.34 − 21.97x + 16.3x2 − 3.704x3
(c) f(x) = x4 − 2x3 + 6x2 − 2x + 5
DETERMINE FOR ALL PARTS THE NUMBER OF POSITIVE AND NEGATIVE REAL ROOTS; THE NUMBER OF COMPLEX ROOTS. FIND THE ROOTS USING EITHER EXCELL OR MATLAB ONLY
