Question
Simplify the expression
32x2−9
Evaluate
2×3x2−3
Multiply the terms
32x2−3
Reduce fractions to a common denominator
32x2−33×3
Write all numerators above the common denominator
32x2−3×3
Solution
32x2−9
Show Solution

Find the roots
x1=−232,x2=232
Alternative Form
x1≈−2.12132,x2≈2.12132
Evaluate
2(3x2)−3
To find the roots of the expression,set the expression equal to 0
2(3x2)−3=0
Remove the unnecessary parentheses
2×3x2−3=0
Multiply the terms
32x2−3=0
Subtract the terms
More Steps

Simplify
32x2−3
Reduce fractions to a common denominator
32x2−33×3
Write all numerators above the common denominator
32x2−3×3
Multiply the numbers
32x2−9
32x2−9=0
Simplify
2x2−9=0
Move the constant to the right side
2x2=9
Divide both sides
22x2=29
Divide the numbers
x2=29
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±29
Simplify the expression
More Steps

Evaluate
29
To take a root of a fraction,take the root of the numerator and denominator separately
29
Simplify the radical expression
More Steps

Evaluate
9
Write the number in exponential form with the base of 3
32
Reduce the index of the radical and exponent with 2
3
23
Multiply by the Conjugate
2×232
When a square root of an expression is multiplied by itself,the result is that expression
232
x=±232
Separate the equation into 2 possible cases
x=232x=−232
Solution
x1=−232,x2=232
Alternative Form
x1≈−2.12132,x2≈2.12132
Show Solution
