Question

7.(-2)²-5.(-2)³-10²​

Answer 1

Oie, Td Bom?!

$7 \times ( - 2) {}^{2} - 5 \times ( - 2) {}^{3} - 10 {}^{2}$

$7 \times 2 {}^{2} - 5 \times ( - 2 {}^{3} ) - (5 \times 2) {}^{2}$

$7 \times 2 {}^{2} + 5 \times 2 {}^{3} - 5 {}^{2} \times 2 {}^{2}$

$(7 + 5 \times 2 - 5 {}^{2} ) \times 2 {}^{2}$

$(7 + 10 - 25) \times 2 {}^{2}$

$- 8 \times 2 {}^{2}$

$- 2 {}^{3} \times 2 {}^{2}$

$- 2 {}^{ 3 + 2}$

$- 2 {}^{5}$

$- (2 \times 2 \times 2 \times 2 \times 2)$

$- 32$

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