If $$x=10$$, what is the value of $$(8x+2)^{2}$$? 
Overseas Competition->Knowledge Point->Calculation Modules->Operations through Formulas->Perfect Square Factorization
$$(8x)^{2}+2\cdot(8x)\cdot2+2^{2}=8^{2}x^{2}+32x+4=8^{2}10^{2}+32\times10+4=6724$$. 