Question

√14 × √126 - √11 2 = ?

Answer 1

Возможно так решается

Answer 2

Let's break down the expression step by step:

1. √14 × √126: First, multiply the square roots of 14 and 126. √14 × √126 = √(14 × 126) = √1764 = 42

2. √112: Take the square root of 112. √112 = √(4 × 28) = 2√28

So, the expression becomes: 42 - 2√28

However, we can simplify √28 further: √28 = √(4 × 7) = 2√7

Now the expression is: 42 - 2 * 2√7 = 42 - 4√7

So, √14 × √126 - √112 equals 42 - 4√7.