Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
3d2−12d
Evaluate
(d−4)(3d×1)
Remove the parentheses
(d−4)×3d×1
Any expression multiplied by 1 remains the same
(d−4)×3d
Multiply the first two terms
3(d−4)d
Multiply the terms
More Steps
Evaluate
3(d−4)
Apply the distributive property
3d−3×4
Multiply the numbers
3d−12
(3d−12)d
Apply the distributive property
3d×d−12d
Solution
3d2−12d
Show Solution
Find the roots
d1=0,d2=4
Evaluate
(d−4)(3d×1)
To find the roots of the expression,set the expression equal to 0
(d−4)(3d×1)=0
Multiply the terms
(d−4)×3d=0
Multiply the terms
3d(d−4)=0
Elimination the left coefficient
d(d−4)=0
Separate the equation into 2 possible cases
d=0d−4=0
Solve the equation
More Steps
Evaluate
d−4=0
Move the constant to the right-hand side and change its sign
d=0+4
Removing 0 doesn't change the value,so remove it from the expression
d=4
d=0d=4
Solution
d1=0,d2=4
Show Solution