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4 votes
Solve equation x= 1+ radical x+5

User Raaj
by
8.1k points

1 Answer

4 votes

Answer: 4

Explanation:

x =
x=1+√(x) +5


x=√(x) +5+1


√(x) +5+1=x


√(x)+5+1+1-1=x+-1\\√(x)+5=x-1\\


x+5=(x-1)^2\\x+5=x^2-2x+1\\x+5-(x^2-2x+1)=x^2-2x+1-(x^2-2x+1)\\-x^2+3x+4=0\\(-x-1)(x-4)=0\\x-4=0\\x=4\\\\4

User Yuval Simhon
by
7.9k points

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