A number is four times larger than the square of half the number. What is the number?

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Answer 1 · 2018-04-10T23:46:17

I tried this:

Let us call our number #x#; we get:

#x=4(x/2)^2#

#x=x^2#

#x^2-x=0#

#x(x-1)=0#

so we have two possibilities:

either: #x=0#
or: #x=1#

Answer 2 · 2018-04-10T23:50:55

#x=0 or x=1#

#x=4(0.5x)^2#
#x=4(0.25x^2)#
#x=x^2#

#x=0 or x=1#