factorise x square - 2 X + 7 by 16
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Your answer is x= 7/4, 1/4
16x square - 32x + 7=0
+ 112
/ \
-28 -4
(-28)÷16= (-7/4)=4x-7
( -4) ÷16= (-1/4)=4x-1
Therefore x={ 7/4, 1/4 }
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