Question

find the value of 2√50+√18-√72 given that √2=1.414​

Answer 1

Answer:

1.414

Step-by-step explanation:

$2 \sqrt{5 \times 5 \times 2} + \sqrt{3 \times 3 \times 2} - \sqrt{2 \times 2 \times 2 \times 3 \times 3}$

$2 \times 5 \sqrt{ 2} + 3 \sqrt{2} - 2 \times 6 \sqrt{2}$

$10 \sqrt{2} + 3 \sqrt{2} - 12 \sqrt{2}$

$13 \sqrt{2 } - 12 \sqrt{2}$

$= \sqrt{2}$

$= 1.414$