Воспользуйся формулой
[tex](a + {b}^{2}) = {a}^{2} + 2ab + {b}^{2} [/tex]
[tex]{62}^{2} = (60 + 2) {}^{2} = {?}^{2} + 2 \times {?}^{} \times {?}^{} + {?}^{2} [/tex]