Question

Воспользуйся формулой
$(a + {b}^{2}) = {a}^{2} + 2ab + {b}^{2}$
${62}^{2} = (60 + 2) {}^{2} = {?}^{2} + 2 \times {?}^{} \times {?}^{} + {?}^{2}$

Answer 1

60^2+2*60*2+2^2=60^2+240+2^2