Question

-8b(b-2b²); 2m⁴(m⁵-m³-1)

Answer 1

$\displaystyle \tt -8b(b-2b^2)=-8b\cdot b-8b(-2b^2)=-8b^2+16b^3$

$\displaystyle \tt 2m^4(m^5-m^3-1)=2m^4\cdot m^5-2m^4\cdot m^3-2m^4=2m^9-2m^7-2m^4$

Answer 2

Ответ:

Объяснение:

-8b²+16b³

2m⁹-2m⁷-2m⁴

Answer 3

Let's simplify the given expressions:

1. -8b(b - 2b²): Start by simplifying the expression inside the parentheses: b - 2b² = b - 2b * b = b - 2b³ Now substitute this back into the original expression: -8b(b - 2b²) = -8b(b - 2b³) Expanding further: -8b(b - 2b³) = -8b * b + (-8b * -2b³) = -8b² + 16b⁴ Therefore, the simplified expression is -8b² + 16b⁴.

2. 2m⁴(m⁵ - m³ - 1): Start by simplifying the expression inside the parentheses: m⁵ - m³ - 1 The expression is already simplified as it is. Now substitute this back into the original expression: 2m⁴(m⁵ - m³ - 1) = 2m⁴(m⁵ - m³ - 1) Expanding further: 2m⁴(m⁵ - m³ - 1) = 2m⁴ * m⁵ + (2m⁴ * -m³) + (2m⁴ * -1) = 2m⁹ - 2m⁷ - 2m⁴ Therefore, the simplified expression is 2m⁹ - 2m⁷ - 2m⁴.