If \frac{x^2-1}{x+1}=4, then what is the value of x ?

Simplification Test 7

Question : 2 of 40

Marks: +1, -0

{x^2-1}/{x+1}=4,

then what is the value of x ?

Solution:

{x^2-1}/{x+1}=4,

⇒{(x+1)(x-1)}/(x+1)=4

⇒x-1=4⇒x=5

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