If the price of a particular chocolate bar is increased by 40%, and it used to be $2, what is the new price after the increase?
2 answers:
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ANSWER
2x-3=0
and
x+4=0
EXPLANATION
Given that:
Then to find roots of
is the same as finding the roots of
By the zero product property, we must have either,
Hence the equations that must be solved to find the roots are:
2x-3=0
and
x+4=0