Question
Simplify the expression
x11−17x10+94x9−168x8
Evaluate
x5×x3(x−4)(x−6)(x−7)
Multiply the terms with the same base by adding their exponents
x5+3(x−4)(x−6)(x−7)
Add the numbers
x8(x−4)(x−6)(x−7)
Multiply the terms
More Steps

Evaluate
x8(x−4)
Apply the distributive property
x8×x−x8×4
Multiply the terms
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Evaluate
x8×x
Use the product rule an×am=an+m to simplify the expression
x8+1
Add the numbers
x9
x9−x8×4
Use the commutative property to reorder the terms
x9−4x8
(x9−4x8)(x−6)(x−7)
Multiply the terms
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Evaluate
(x9−4x8)(x−6)
Apply the distributive property
x9×x−x9×6−4x8×x−(−4x8×6)
Multiply the terms
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Evaluate
x9×x
Use the product rule an×am=an+m to simplify the expression
x9+1
Add the numbers
x10
x10−x9×6−4x8×x−(−4x8×6)
Use the commutative property to reorder the terms
x10−6x9−4x8×x−(−4x8×6)
Multiply the terms
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Evaluate
x8×x
Use the product rule an×am=an+m to simplify the expression
x8+1
Add the numbers
x9
x10−6x9−4x9−(−4x8×6)
Multiply the numbers
x10−6x9−4x9−(−24x8)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
x10−6x9−4x9+24x8
Subtract the terms
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Evaluate
−6x9−4x9
Collect like terms by calculating the sum or difference of their coefficients
(−6−4)x9
Subtract the numbers
−10x9
x10−10x9+24x8
(x10−10x9+24x8)(x−7)
Apply the distributive property
x10×x−x10×7−10x9×x−(−10x9×7)+24x8×x−24x8×7
Multiply the terms
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Evaluate
x10×x
Use the product rule an×am=an+m to simplify the expression
x10+1
Add the numbers
x11
x11−x10×7−10x9×x−(−10x9×7)+24x8×x−24x8×7
Use the commutative property to reorder the terms
x11−7x10−10x9×x−(−10x9×7)+24x8×x−24x8×7
Multiply the terms
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Evaluate
x9×x
Use the product rule an×am=an+m to simplify the expression
x9+1
Add the numbers
x10
x11−7x10−10x10−(−10x9×7)+24x8×x−24x8×7
Multiply the numbers
x11−7x10−10x10−(−70x9)+24x8×x−24x8×7
Multiply the terms
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Evaluate
x8×x
Use the product rule an×am=an+m to simplify the expression
x8+1
Add the numbers
x9
x11−7x10−10x10−(−70x9)+24x9−24x8×7
Multiply the numbers
x11−7x10−10x10−(−70x9)+24x9−168x8
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
x11−7x10−10x10+70x9+24x9−168x8
Subtract the terms
More Steps

Evaluate
−7x10−10x10
Collect like terms by calculating the sum or difference of their coefficients
(−7−10)x10
Subtract the numbers
−17x10
x11−17x10+70x9+24x9−168x8
Solution
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Evaluate
70x9+24x9
Collect like terms by calculating the sum or difference of their coefficients
(70+24)x9
Add the numbers
94x9
x11−17x10+94x9−168x8
Show Solution

Find the roots
x1=0,x2=4,x3=6,x4=7
Evaluate
(x5)(x3)(x−4)(x−6)(x−7)
To find the roots of the expression,set the expression equal to 0
(x5)(x3)(x−4)(x−6)(x−7)=0
Calculate
x5(x3)(x−4)(x−6)(x−7)=0
Calculate
x5×x3(x−4)(x−6)(x−7)=0
Multiply
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Multiply the terms
x5×x3(x−4)(x−6)(x−7)
Multiply the terms with the same base by adding their exponents
x5+3(x−4)(x−6)(x−7)
Add the numbers
x8(x−4)(x−6)(x−7)
x8(x−4)(x−6)(x−7)=0
Separate the equation into 4 possible cases
x8=0x−4=0x−6=0x−7=0
The only way a power can be 0 is when the base equals 0
x=0x−4=0x−6=0x−7=0
Solve the equation
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Evaluate
x−4=0
Move the constant to the right-hand side and change its sign
x=0+4
Removing 0 doesn't change the value,so remove it from the expression
x=4
x=0x=4x−6=0x−7=0
Solve the equation
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Evaluate
x−6=0
Move the constant to the right-hand side and change its sign
x=0+6
Removing 0 doesn't change the value,so remove it from the expression
x=6
x=0x=4x=6x−7=0
Solve the equation
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Evaluate
x−7=0
Move the constant to the right-hand side and change its sign
x=0+7
Removing 0 doesn't change the value,so remove it from the expression
x=7
x=0x=4x=6x=7
Solution
x1=0,x2=4,x3=6,x4=7
Show Solution
