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Sagot :
To determine the value of [tex]\(\frac{a^3 - b^3}{5}\)[/tex] when [tex]\(a = 2\)[/tex] and [tex]\(b = -3\)[/tex], let's walk through the calculation step-by-step.
1. Calculate [tex]\(a^3\)[/tex]:
[tex]\[ a^3 = (2)^3 = 2 \times 2 \times 2 = 8 \][/tex]
2. Calculate [tex]\(b^3\)[/tex]:
[tex]\[ b^3 = (-3)^3 = (-3) \times (-3) \times (-3) = -27 \][/tex]
3. Calculate the numerator [tex]\(a^3 - b^3\)[/tex]:
[tex]\[ a^3 - b^3 = 8 - (-27) = 8 + 27 = 35 \][/tex]
4. Divide the result by 5:
[tex]\[ \frac{a^3 - b^3}{5} = \frac{35}{5} = 7 \][/tex]
Therefore, the value of the expression [tex]\(\frac{a^3 - b^3}{5}\)[/tex] when [tex]\(a = 2\)[/tex] and [tex]\(b = -3\)[/tex] is [tex]\(7\)[/tex].
The correct answer is:
[tex]\[ \boxed{7} \][/tex]
1. Calculate [tex]\(a^3\)[/tex]:
[tex]\[ a^3 = (2)^3 = 2 \times 2 \times 2 = 8 \][/tex]
2. Calculate [tex]\(b^3\)[/tex]:
[tex]\[ b^3 = (-3)^3 = (-3) \times (-3) \times (-3) = -27 \][/tex]
3. Calculate the numerator [tex]\(a^3 - b^3\)[/tex]:
[tex]\[ a^3 - b^3 = 8 - (-27) = 8 + 27 = 35 \][/tex]
4. Divide the result by 5:
[tex]\[ \frac{a^3 - b^3}{5} = \frac{35}{5} = 7 \][/tex]
Therefore, the value of the expression [tex]\(\frac{a^3 - b^3}{5}\)[/tex] when [tex]\(a = 2\)[/tex] and [tex]\(b = -3\)[/tex] is [tex]\(7\)[/tex].
The correct answer is:
[tex]\[ \boxed{7} \][/tex]
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