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شائع Word Problems >

Five less than a number squared is 30 more than twice the number. Find the number.

الحلّ

F i v e l ess t han a n u mb er s q u a re d i s 30 m ore t han tw i ce t h e n u mb er . F in d t h e n u mb er .

الحلّ

The number : 7 or - 5

خطوات الحلّ

Represent the number with

x

A.T.Q.:

x^{2} - 5 = 30 + 2 x

x^{2} - 5 = 30 + 2 x, x

حلّ لـ:

x = 7, x = - 5

The number : 7 or - 5

أمثلة شائعة

twenty less than one third of the number is 72.find the number Subtract a number from 7 and the result is 4 . Find that number.Twice a number reduced by 5 equals the number. Find the number.Seven eighths of a number is 14 . What is the number?Find the principal which a man invested in a bank for 3years at the rate of 3percentage if the simple interest was 45naira