131k views
3 votes
Find x
(X+1)squared=20

User Berserker
by
7.8k points

2 Answers

3 votes

Answer:

x = ±2
√(5) - 1

Explanation:


(x+1)^2=20

Take the square root of both sides to cancel the square:

x + 1 = ±
√(20)

Simplify the radical:

x + 1 = ±2
√(5)

Subtract 1 from both sides:

x = ±2
√(5) - 1

User Hortense
by
8.0k points
5 votes

Answer:

Explanation:

x(x+1)=√20

x²+x=4.472

x²+x- 4.472=0

Solve quadratically and get ur answers

User Liraz
by
7.9k points

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