Question

Urgent! Va rog sa ma ajutati

Answer 1

ii
${1}^{3} + {2}^{3} + {3}^{3} + {4}^{3} = 3 \frac{1}{3}$
${5}^{3} + {0}^{3} + {7}^{3} = 4$
${1}^{3} + {9}^{3} + {11}^{3 } = 7$
${1}^{4} + {2}^{4} + {3}^{4} + {4}^{4} = 2 \frac{1}{2}$
5.
$a) {6}^{2} + {7}^{2} = (6 + 7) {}^{2} \\ \: \: \: \: 6 \frac{1}{2} =169 \: (f)$
${3}^{2 } + {4}^{2} = {5}^{2 } \\ 25 = 25(a)$
${4}^{2} + {5}^{2} = {6}^{2} \\ 41 = 36(f)$
${3}^{3} + {4}^{3} + {5}^{3} = {6}^{3} \\ 216 = 216(a)$
${8}^{2} - {7}^{2} = (8 - 7)(8 + 7) \\ 15 = 15(a)$
6. a)
$(8 + 3) \times (8 - 3) = \\ 11 \times 5 = 55$

${8}^{2} - {3}^{2} = 64 - 9 = 55$
b)
$(8 + 3){2} = {11}^{2} = 121$