Problem

find out the value of x:x21=nd out the value of x:x21=0
Solving Steps
Answer:
+1 find out the value of x :
x21=0 find out the value!!
x21=0+1 find out the value of x :
x21=0 find out the value of x :
x21=0
(1) Add 1 to both sides of the equation: x2=1
(2) Take the square root of both sides: x=/1
(3) Take the square root of both sides: x=/1
(4) Take the square root of both sides: x=/1

Answer

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Answer

Take the square root of both sides: x=1 or x=-1

Steps

Step 1 :To solve the quadratic equation x^2-1=0:

Step 2 :Add 1 to both sides of the equation: x^2=1

Step 3 :Take the square root of both sides: x=1 or x=-1

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