Question

-0.4×(-10)^4+3×(-10)^2-98

Answer 1

Получается
- 0,4 * 10000 +3 *100-98=-4000+300-98=-3798

Answer 2

To evaluate the expression, let's break it down step by step:

1. Start by calculating the value of the exponent in parentheses: (-10)^4. Since the exponent is even, the result will be positive: (-10)^4 = 10^4 = 10,000.

2. Now substitute this value back into the expression and simplify: -0.4 × 10,000 + 3 × (-10)^2 - 98.

3. Next, calculate the value of the exponent in the second term: (-10)^2: (-10)^2 = 10^2 = 100.

4. Substitute this value back into the expression: -0.4 × 10,000 + 3 × 100 - 98.

5. Continue simplifying: -4,000 + 300 - 98.

6. Add the numbers together: -4,000 + 300 = -3,700.

7. Finally, subtract 98: -3,700 - 98 = -3,798.

Therefore, -0.4×(-10)^4 + 3×(-10)^2 - 98 equals -3,798.