Question

2х(3х-7)-3х(2х+1)​ а

Answer 1

-17х
Потому что
-6х^2-14х-6х^2-3х

Answer 2

To simplify the expression 2x(3x - 7) - 3x(2x + 1), you can use the distributive property and then combine like terms. Here's the step-by-step simplification:

1. Distribute 2x into (3x - 7): 2x * 3x - 2x * 7 = 6x^2 - 14x

2. Distribute -3x into (2x + 1): -3x * 2x - (-3x) * 1 = -6x^2 - (-3x) = -6x^2 + 3x

Now, you have the two simplified terms:

6x^2 - 14x - (6x^2 + 3x)

Now, subtract the second expression from the first:

(6x^2 - 14x) - (6x^2 + 3x)

When you subtract, change the signs inside the second expression:

6x^2 - 14x - 6x^2 - 3x

Now, combine like terms:

(6x^2 - 6x^2) + (-14x - 3x)

The 6x^2 terms cancel each other out, and you're left with:

-17x

So, the simplified expression is:

-17x