$$ \begin{array}{ll} ext { 17. } 8(5)^{2}-7(3)^{3} & ext { 18. } 8-2(5-3)\end{array} $$

Question

$$ \begin{array}{ll}	ext { 17. } 8(5)^{2}-7(3)^{3} & 	ext { 18. } 8-2(5-3)\end{array} $$

UpStudy AI · Accepted Answer

Sure, let's evaluate each expression step by step.

### 17. $$ 8(5)^{2} - 7(3)^{3} $$

**Step 1: Calculate the exponents.**
$$
5^{2} = 25 \
3^{3} = 27
$$

**Step 2: Multiply by the coefficients.**
$$
8 \times 25 = 200 \
7 \times 27 = 189
$$

**Step 3: Subtract the results.**
$$
200 - 189 = 11
$$

**Answer:** $$ 11 $$

---

### 18. $$ 8 - 2(5 - 3) $$

**Step 1: Solve the expression inside the parentheses.**
$$
5 - 3 = 2
$$

**Step 2: Multiply by the coefficient outside the parentheses.**
$$
2 \times 2 = 4
$$

**Step 3: Subtract the result from the first term.**
$$
8 - 4 = 4
$$

**Answer:** $$ 4 $$
17. $$ 11 $$ 18. $$ 4 $$

Upstudy AI Solution