👤

2(4+√21) -6√7 + 2√7 • (3-√3)


Răspuns :

2(4+√21) -6√7 + 2√7 • (3-√3) =
=8+2√21 -6√7 + 6√7-2√21 =
=8

2(4+√21) -6√7 + 2√7 • (3-√3) =
=8+2√21-6√7+6√7-2√21

=8