Question

Wykonaj działania. a) 4x√3(1/8√27- 0,75√12 b)√3 1/8 *(-4a√18-2√8 +8√1/2a-2√50)

Answer 1

A) 4√3 * (1/8 * √27 - 0,75 * √12) = 4√3 * (1/8 * 3√3 - 0,75 * 2√3) = 4√3 * (3/8√3 - 3/2√3) = 3/2 * 3 - 6 * 3 = 9/2 - 18 = 4,5 - 18 = -13,5

b) √3 * 1/8 * (-4a√18 - 2√8 + 8√(1/2)a - 2√50) = √3/8 * (-4a * 3√2 - 2 * 2√2 + 8 * √2/2a - 2 * 5 * √2) = √3/8 * (-12a√2 - 4√2 + 4√2a - 10√2) = √3/8 * (-8a√2 - 14√2) = -a√6 - 7√3/4