Algebra
Calculus
Trigonometry
Matrix
Question
Calculate the value
22
Alternative Form
≈0.707107
Evaluate
2−(21)
Remove the unnecessary parentheses
2−21
Calculate
More Steps
Evaluate
−21
Multiply by the Conjugate
−2×21×2
Calculate
−21×2
Any expression multiplied by 1 remains the same
−22
2−22
Reduce fractions to a common denominator
22×2−22
Write all numerators above the common denominator
22×2−2
Use the commutative property to reorder the terms
222−2
Solution
More Steps
Evaluate
22−2
Collect like terms by calculating the sum or difference of their coefficients
(2−1)2
Subtract the numbers
2
22
Alternative Form
≈0.707107
Show Solution
