(3√3 - 2√2)² =

(3√3 - 2√2)²=27-12√6+8=35-12√6

(3√3)²+(2√2)²-2*3√3*2√2=27+8-2*3*2√3*2=27-12√6+8=35-12√6

(3√3 - 2√2)²= =(3√3)²-2*3√3*2√2 +( 2√2)²= =27-12√6+8= =35-12√6