Question
Simplify the expression
12s2+512
Evaluate
s2×12+512
Solution
12s2+512
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Factor the expression
4(3s2+128)
Evaluate
s2×12+512
Use the commutative property to reorder the terms
12s2+512
Solution
4(3s2+128)
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Find the roots
s1=−386i,s2=386i
Alternative Form
s1≈−6.531973i,s2≈6.531973i
Evaluate
s2×12+512
To find the roots of the expression,set the expression equal to 0
s2×12+512=0
Use the commutative property to reorder the terms
12s2+512=0
Move the constant to the right-hand side and change its sign
12s2=0−512
Removing 0 doesn't change the value,so remove it from the expression
12s2=−512
Divide both sides
1212s2=12−512
Divide the numbers
s2=12−512
Divide the numbers
More Steps

Evaluate
12−512
Cancel out the common factor 4
3−128
Use b−a=−ba=−ba to rewrite the fraction
−3128
s2=−3128
Take the root of both sides of the equation and remember to use both positive and negative roots
s=±−3128
Simplify the expression
More Steps

Evaluate
−3128
Evaluate the power
3128×−1
Evaluate the power
3128×i
Evaluate the power
More Steps

Evaluate
3128
To take a root of a fraction,take the root of the numerator and denominator separately
3128
Simplify the radical expression
382
Multiply by the Conjugate
3×382×3
Multiply the numbers
3×386
When a square root of an expression is multiplied by itself,the result is that expression
386
386i
s=±386i
Separate the equation into 2 possible cases
s=386is=−386i
Solution
s1=−386i,s2=386i
Alternative Form
s1≈−6.531973i,s2≈6.531973i
Show Solution
