Question
Simplify the expression
3x2−6x4−10x3
Evaluate
(3x2−6x4)−(5x2×2x×1)
Remove the parentheses
3x2−6x4−(5x2×2x×1)
Solution
More Steps

Multiply the terms
5x2×2x×1
Rewrite the expression
5x2×2x
Multiply the terms
10x2×x
Multiply the terms with the same base by adding their exponents
10x2+1
Add the numbers
10x3
3x2−6x4−10x3
Show Solution

Factor the expression
x2(3−6x2−10x)
Evaluate
(3x2−6x4)−(5x2×2x×1)
Remove the parentheses
3x2−6x4−(5x2×2x×1)
Multiply the terms
More Steps

Multiply the terms
5x2×2x×1
Rewrite the expression
5x2×2x
Multiply the terms
10x2×x
Multiply the terms with the same base by adding their exponents
10x2+1
Add the numbers
10x3
3x2−6x4−10x3
Rewrite the expression
x2×3−x2×6x2−x2×10x
Solution
x2(3−6x2−10x)
Show Solution

Find the roots
x1=−65+43,x2=0,x3=6−5+43
Alternative Form
x1≈−1.92624,x2=0,x3≈0.259573
Evaluate
(3x2−6x4)−(5x2×2x×1)
To find the roots of the expression,set the expression equal to 0
(3x2−6x4)−(5x2×2x×1)=0
Remove the parentheses
3x2−6x4−(5x2×2x×1)=0
Multiply the terms
More Steps

Multiply the terms
5x2×2x×1
Rewrite the expression
5x2×2x
Multiply the terms
10x2×x
Multiply the terms with the same base by adding their exponents
10x2+1
Add the numbers
10x3
3x2−6x4−10x3=0
Factor the expression
x2(3−6x2−10x)=0
Separate the equation into 2 possible cases
x2=03−6x2−10x=0
The only way a power can be 0 is when the base equals 0
x=03−6x2−10x=0
Solve the equation
More Steps

Evaluate
3−6x2−10x=0
Rewrite in standard form
−6x2−10x+3=0
Multiply both sides
6x2+10x−3=0
Substitute a=6,b=10 and c=−3 into the quadratic formula x=2a−b±b2−4ac
x=2×6−10±102−4×6(−3)
Simplify the expression
x=12−10±102−4×6(−3)
Simplify the expression
More Steps

Evaluate
102−4×6(−3)
Multiply
102−(−72)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
102+72
Evaluate the power
100+72
Add the numbers
172
x=12−10±172
Simplify the radical expression
More Steps

Evaluate
172
Write the expression as a product where the root of one of the factors can be evaluated
4×43
Write the number in exponential form with the base of 2
22×43
The root of a product is equal to the product of the roots of each factor
22×43
Reduce the index of the radical and exponent with 2
243
x=12−10±243
Separate the equation into 2 possible cases
x=12−10+243x=12−10−243
Simplify the expression
x=6−5+43x=12−10−243
Simplify the expression
x=6−5+43x=−65+43
x=0x=6−5+43x=−65+43
Solution
x1=−65+43,x2=0,x3=6−5+43
Alternative Form
x1≈−1.92624,x2=0,x3≈0.259573
Show Solution
