Question

(-√60)2•3 1+0,2•(√30)2

Answer 1

(-√60)2•3 1+0,2•(√30)2
-2√15•2•31+0,4√30
-124√15+0,4√30

Answer 2

It seems like you're trying to perform some mathematical operations with square roots. Let's break it down step by step:

1. (-√60)² • 3: First, calculate the square root of 60: √60 = √(4 * 15) = 2√15

   Now, square (-√60): (-√60)² = (2√15)² = 4 * 15 = 60

   Finally, multiply by 3: 60 • 3 = 180

So, (-√60)² • 3 equals 180.

2. 1 + 0.2 • (√30)²: First, calculate the square root of 30: √30 ≈ 5.48 (rounded to two decimal places)

   Now, square (√30): (√30)² = (5.48)² ≈ 30 (rounded to two decimal places)

   Finally, multiply 0.2 by the squared value and add 1: 1 + 0.2 • 30 ≈ 1 + 6 ≈ 7

So, 1 + 0.2 • (√30)² equals 7.