Question

$5 \sqrt7 {}^{2} + 3 \sqrt{7 {}^{2} }$
va rog sa ma ajutati​

Answer 1

Răspuns:

$5 \times { \sqrt{7} }^{2} + 3 \times { \sqrt{7} }^{2}$

$5 \times \sqrt{49} + 3 \times \sqrt{49}$

$5 \times 7 + 3 \times 7$

$35 + 21$

$56$