Question

simplify ( 3√2 – 4 √7) – ( √50 - √ 28)

Answer 1

Answer:

-2√2-4 √7

Step-by-step explanation:

( 3√2 – 4 √7) – ( √50 - √ 28)

Answer 2

Answer:

$- 2( \sqrt{2} + \sqrt{7} )$

Step-by-step explanation:

$3 \sqrt{2} - 4 \sqrt{7}$

second equation can be written as

$\sqrt{25 \times 2} - \sqrt{4 \times 7} \\ 5 \sqrt{2} - 2 \sqrt{7}$

after subtract equation 1 from 2

$- 2 \sqrt{2} - 2 \sqrt{7} = - 2( \sqrt{2} + \sqrt{7} )$