find a natural number whose square diminished by 84 is equal to its twice
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Let the number be x
Then according to question
x²-84=2x
or,x²-2x-84=0
or,by using quadratic formula
x=1+√85 or1-√85
neglecting the negative value x=1+√85=10.21
which can be rounded off to 10.
Then according to question
x²-84=2x
or,x²-2x-84=0
or,by using quadratic formula
x=1+√85 or1-√85
neglecting the negative value x=1+√85=10.21
which can be rounded off to 10.
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sharmaraju331:
ans is 0
plz do on a page and click photo and then send
plz
can you please upload the pic of original question as there is something wrong with the question.Also answer can't be 0 because 0 is NOT A NATURAL NUMBER.
i m not having that pic
and this only the specific question
Ask your teacher,i am sure there is something wrong with the question.
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