Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
x1=−6,x2=0
Evaluate
2−1x3−3x2=0
Use b−a=−ba=−ba to rewrite the fraction
−21x3−3x2=0
Factor the expression
x2(−21x−3)=0
Separate the equation into 2 possible cases
x2=0−21x−3=0
The only way a power can be 0 is when the base equals 0
x=0−21x−3=0
Solve the equation
More Steps
Evaluate
−21x−3=0
Move the constant to the right-hand side and change its sign
−21x=0+3
Removing 0 doesn't change the value,so remove it from the expression
−21x=3
Change the signs on both sides of the equation
21x=−3
Multiply by the reciprocal
21x×2=−3×2
Multiply
x=−3×2
Multiply
x=−6
x=0x=−6
Solution
x1=−6,x2=0
Show Solution
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