Question

помогите я не спровляюсь ребята пожалуйста позязя

Answer 1

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Answer 2

1.
$1.5 \times {2}^{4} - {3}^{2} = 1.5 \times 16 - 9 = 24 - 9 = 15$
2.
${a}^{7} \times {a}^{4} = {a}^{7 + 4 } = {a}^{11}$
${a}^{7} \div {a}^{4} = {a}^{7 - 4} = {a}^{3}$
$( { {a}^{7} })^{4} = {a}^{7 \times 4} = {a}^{28}$
$\frac{ {a}^{17} \times ( { {a}^{3} })^{3} }{ {a}^{20} } = \frac{ {a}^{26} }{ {a}^{20} } = \frac{ {a}^{13} }{ {a}^{10} }$
3.