The negative square root of a number increased by 2 is equal to the number. Find the number.
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- Let the number be= A .
- Therefore √A + 2= A. So A-2= √A
- Squaring on both sides we get
- A^2–4A+4= A .
- So A^2–5A+ 4=0 ;
- factorising we get, (A-4) (A-1)= 0.
- So A= 4 or 1
- Neglecting the negative number the number is = 4
Hope this helps u Mate☺
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