QuestionAugust 27, 2025

Select the correct answer. What is the value of this expression when a=2 and b=-3 (a^3-b^3)/(5) -3(4)/(5) -(3)/(5) 7

Select the correct answer. What is the value of this expression when a=2 and b=-3 (a^3-b^3)/(5) -3(4)/(5) -(3)/(5) 7
Select the correct answer.
What is the value of this expression when a=2 and b=-3
(a^3-b^3)/(5)
-3(4)/(5)
-(3)/(5)
7

Solution
4.4(257 votes)

Answer

7 Explanation 1. Substitute values Substitute a=2 and b=-3 into the expression \frac{a^3-b^3}{5}. 2. Calculate powers a^3 = 2^3 = 8 and b^3 = (-3)^3 = -27. 3. Compute difference a^3 - b^3 = 8 - (-27) = 8 + 27 = 35. 4. Divide by 5 \frac{35}{5} = 7.

Explanation

1. Substitute values<br /> Substitute $a=2$ and $b=-3$ into the expression $\frac{a^3-b^3}{5}$.<br />2. Calculate powers<br /> $a^3 = 2^3 = 8$ and $b^3 = (-3)^3 = -27$.<br />3. Compute difference<br /> $a^3 - b^3 = 8 - (-27) = 8 + 27 = 35$.<br />4. Divide by 5<br /> $\frac{35}{5} = 7$.
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