Question

without making the graph find the zeroes of -4x2+4x-1.
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Answer 1

-4x^2+4x-1

=-4x^2+2x+2x-1

=-2x(2x-1)+1(2x-1)

=(-2x+1)=0

=(2x-1)=0

x=1/2 and 1/2

hope it helps