Question

x=√7+4√3 + √7-4√3 determine o numero natural x que resolve essa questão?

Answer 1

Resolvendo:

$\mathsf{x=\sqrt{7}+4\sqrt{3}+\sqrt{7}-4\sqrt{3}}\\\mathsf{x=\sqrt{7}+\sqrt{7}+4\sqrt{3}-4\sqrt{3}}\\\boxed{\boxed{\mathbf{x=2\sqrt{7}}}}$

Answer 2

$x = \sqrt{7} + 4 \sqrt{3} + \sqrt{7} - 4 \sqrt{3} \\ \\ x = \sqrt{7} + \sqrt{7} + \not 4 \sqrt{\not 3} - \not 4 \sqrt{\not 3} \\ \\ x = \sqrt{7} + \sqrt{7} \\ \\ x = 2 \sqrt{7}$