Question
Simplify the expression
66x7−30x6
Evaluate
x(11x−5)×6x5
Multiply the terms with the same base by adding their exponents
x1+5(11x−5)×6
Add the numbers
x6(11x−5)×6
Use the commutative property to reorder the terms
6x6(11x−5)
Apply the distributive property
6x6×11x−6x6×5
Multiply the terms
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Evaluate
6x6×11x
Multiply the numbers
66x6×x
Multiply the terms
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Evaluate
x6×x
Use the product rule an×am=an+m to simplify the expression
x6+1
Add the numbers
x7
66x7
66x7−6x6×5
Solution
66x7−30x6
Show Solution

Find the roots
x1=0,x2=115
Alternative Form
x1=0,x2=0.4˙5˙
Evaluate
x(11x−5)(6x5)
To find the roots of the expression,set the expression equal to 0
x(11x−5)(6x5)=0
Multiply the terms
x(11x−5)×6x5=0
Multiply
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Multiply the terms
x(11x−5)×6x5
Multiply the terms with the same base by adding their exponents
x1+5(11x−5)×6
Add the numbers
x6(11x−5)×6
Use the commutative property to reorder the terms
6x6(11x−5)
6x6(11x−5)=0
Elimination the left coefficient
x6(11x−5)=0
Separate the equation into 2 possible cases
x6=011x−5=0
The only way a power can be 0 is when the base equals 0
x=011x−5=0
Solve the equation
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Evaluate
11x−5=0
Move the constant to the right-hand side and change its sign
11x=0+5
Removing 0 doesn't change the value,so remove it from the expression
11x=5
Divide both sides
1111x=115
Divide the numbers
x=115
x=0x=115
Solution
x1=0,x2=115
Alternative Form
x1=0,x2=0.4˙5˙
Show Solution
