If x= 2 and x = 0 are roots of f(x) = ax raise to the power 2 + bx, then a and b are
a) 0.0
b) can not be calculated
c) -2.-1
d) -2
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If x= 2 and x = 0 are roots of f(x) = ax raise to the power 2 + bx, then a and b are
a) 0.0
b) can not be calculated
c) -2.-1
d) -2
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Verified answer
f(x) = ax(x + b)
f(0) = 0, so in this case a and b vanishes.
f(2) = 0
implies 2a(2 + b) = 0
a can take any non zero real value and b = - 2.