Question

-5 (4a-2c)-4 (a-3c)=

Answer 1

Ответ: -5(4а-2с)-4(а-3с)=-20а+10с-4а+12с= -24а+22с

Answer 2

To simplify the expression, let's expand and simplify each term:

-5(4a - 2c) - 4(a - 3c)

First, distribute -5 and -4 to the terms inside the parentheses:

= -20a + 10c - (-4a + 12c)

Remember that when we multiply a negative number by a negative number, it becomes positive. So, -(-4a) is equivalent to 4a.

= -20a + 10c + 4a - 12c

Next, let's group like terms together:

= (-20a + 4a) + (10c - 12c)

= -16a - 2c

Therefore, the simplified expression is -16a - 2c.