Question

Se a=7√10, b= -2√10, c= -6√10, o valor de a+ b+ c=

Answer 1

Answer:

-1√10

Step-by-step explanation:

$a + b + c$

$7 \sqrt{10} + ( - 2 \sqrt{10} ) + ( - 6 \sqrt{10}$

$\sqrt{10} (7 + ( - 2) + ( - 6))$

$\sqrt{10} (7 + ( - 8))$

$\sqrt{10} ( - 1)$

$\: - 1 \sqrt{10}$