Question

(7-2√3)27 - 2 under root 3 whole square​

Answer 1

Answer:

12.504

Step-by-step explanation:

$(7-2\sqrt{3} )^{2}$

=49+12-2×7×2$\sqrt{3}$

=61-28$\sqrt{3}$

=61-28×1.732

=61-48.496

=12.504