if x-2 is one of the factor of x sq +a -6 and x sq - 9x +b, then find the value of a and b
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Since x - 2 is a factor of f(x) then by factor theorem f(2) = 0
f(x) = x² +a - 6
f(2) = 0
4 + a - 6 = 0
a = 2
Similarly
g(x) = x² -9x + b
g(2) = 0
4 - 18 +b = 0
b = 14
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