Question
Find the roots
x1=−642,x2=642
Alternative Form
x1≈−1.080123,x2≈1.080123
Evaluate
6x2−7
To find the roots of the expression,set the expression equal to 0
6x2−7=0
Move the constant to the right-hand side and change its sign
6x2=0+7
Removing 0 doesn't change the value,so remove it from the expression
6x2=7
Divide both sides
66x2=67
Divide the numbers
x2=67
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±67
Simplify the expression
More Steps

Evaluate
67
To take a root of a fraction,take the root of the numerator and denominator separately
67
Multiply by the Conjugate
6×67×6
Multiply the numbers
More Steps

Evaluate
7×6
The product of roots with the same index is equal to the root of the product
7×6
Calculate the product
42
6×642
When a square root of an expression is multiplied by itself,the result is that expression
642
x=±642
Separate the equation into 2 possible cases
x=642x=−642
Solution
x1=−642,x2=642
Alternative Form
x1≈−1.080123,x2≈1.080123
Show Solution
