Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
x1=−1,x2=0,x3=1
Evaluate
2(−x3)=−2(x×1)
Remove the parentheses
2(−x3)=−2x×1
Multiply the numbers
−2x3=−2x×1
Multiply the terms
−2x3=−2x
Add or subtract both sides
−2x3−(−2x)=0
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−2x3+2x=0
Factor the expression
2x(−x2+1)=0
Divide both sides
x(−x2+1)=0
Separate the equation into 2 possible cases
x=0−x2+1=0
Solve the equation
More Steps
Evaluate
−x2+1=0
Move the constant to the right-hand side and change its sign
−x2=0−1
Removing 0 doesn't change the value,so remove it from the expression
−x2=−1
Change the signs on both sides of the equation
x2=1
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±1
Simplify the expression
x=±1
Separate the equation into 2 possible cases
x=1x=−1
x=0x=1x=−1
Solution
x1=−1,x2=0,x3=1
Show Solution
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