Question
Simplify the expression
−x2−12x
Evaluate
2x2−3x2−12x
Solution
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Evaluate
2x2−3x2
Collect like terms by calculating the sum or difference of their coefficients
(2−3)x2
Subtract the numbers
−x2
−x2−12x
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Factor the expression
−x(x+12)
Evaluate
2x2−3x2−12x
Subtract the terms
More Steps

Evaluate
2x2−3x2
Collect like terms by calculating the sum or difference of their coefficients
(2−3)x2
Subtract the numbers
−x2
−x2−12x
Rewrite the expression
−x×x−x×12
Solution
−x(x+12)
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Find the roots
x1=−12,x2=0
Evaluate
2x2−3x2−12x
To find the roots of the expression,set the expression equal to 0
2x2−3x2−12x=0
Subtract the terms
More Steps

Simplify
2x2−3x2
Collect like terms by calculating the sum or difference of their coefficients
(2−3)x2
Subtract the numbers
−x2
−x2−12x=0
Factor the expression
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Evaluate
−x2−12x
Rewrite the expression
−x×x−x×12
Factor out −x from the expression
−x(x+12)
−x(x+12)=0
When the product of factors equals 0,at least one factor is 0
−x=0x+12=0
Solve the equation for x
x=0x+12=0
Solve the equation for x
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Evaluate
x+12=0
Move the constant to the right-hand side and change its sign
x=0−12
Removing 0 doesn't change the value,so remove it from the expression
x=−12
x=0x=−12
Solution
x1=−12,x2=0
Show Solution
