Question

A) 3a · (-5b) · (-2c) = б) - 12x + 5x - 4x =

Answer 1

1. 30 abc

2. x=-11x

Можно было самому догадаться

Answer 2

A) To simplify the expression 3a · (-5b) · (-2c), you can follow the rules of multiplication and the properties of negative numbers. When multiplying two negative numbers, the result is positive. Here's the simplification step by step:

3a · (-5b) · (-2c)

Step 1: Multiply -5b and -2c (-5b) · (-2c) = 10bc (since -5 * -2 = 10)

Step 2: Multiply 3a and 10bc 3a · 10bc = 30abc

So, the simplified expression is 30abc.

B) To simplify the expression -12x + 5x - 4x, you need to combine like terms. Like terms are terms that have the same variable raised to the same power. Here's the simplification step by step:

-12x + 5x - 4x

Step 1: Combine the x terms -12x + 5x - 4x = (-12 + 5 - 4) x

Step 2: Calculate the coefficient of x (-12 + 5 - 4) = -11

So, the simplified expression is -11x.