Knowing That A = (-2) And B= (+2)\Xb0, Calculate The Value Of A - B., (.) +18 , (-) +16 , (.) -8 , (.) -16

Knowing That A = (-2) And B= (+2)\Xb0, Calculate The Value Of A - B., (.) +18 , (-) +16 , (.) -8 , (.) -16

Knowing that a = (-2) and b= (+2)°, calculate the value of a - b.

(.) +18
(-) +16
(.) -8
(.) -16

✒️ $\large{\mathcal{ANSWER}}$

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❒The value of this Expression corresponds to -16 so alternative D is correct.

We can calculate separately, and then subtract between the values.

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● Calculation;

$a = ( - 2) ^{3}$

$a = ( - 2) \times ( - 2 \times ( - 2)$

$\: \boxed{a = -8}$

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$b = ( + 2) {}^{3}$

$b = 2 \times 2 \times 2$

$\: \boxed{b = 8}$

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$a - b$

$- 8 - 8$

$\: \boxed{-16}$

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