Question

(4x-1)(3+5x)-(x+3)(5x-1)

Answer 1

Ответ:12х+20х^2-3-5х-(5х^2-х+15х-3)=12х+20х^2-3-5х-(5х^2+14х-3)= 12х+20х^2-3-5х-5х^2-14х+3 =-7х+15х^2

Answer 2

To simplify the expression (4x-1)(3+5x)-(x+3)(5x-1), you can use the distributive property and then combine like terms. Here's the step-by-step simplification:

1. Distribute the terms in the first parentheses into the second parentheses:

(4x * 3) + (4x * 5x) + (-1 * 3) + (-1 * 5x)

2. Simplify each of the products:

12x + 20x^2 - 3 - 5x

3. Combine like terms:

(12x - 5x) + 20x^2 - 3

4. Further simplify:

7x + 20x^2 - 3

So, the simplified expression is:

20x^2 + 7x - 3