Question

SOS (x-3)(x+5)-(x во 2 степени+x)

Answer 1

Ответ:

x-15

Объяснение:

x2+ 5x -3x -15 -x2 -x=5x-3x -15-x=x-15

P.S. x2 - это x во 2 степени

Answer 2

Ответ:x=15

Объяснение:(x-3)(x+5)-(x^2+x)= x^2 + 5x - 3x - 15 -x^2 - x= x - 15

Следовательно, x=15

Answer 3

To solve the expression SOS (x-3)(x+5)-(x во 2 степени+x), let's simplify step by step:

1. Start by expanding the first part of the expression: (x-3)(x+5) (x-3)(x+5) = x(x) + x(5) - 3(x) - 3(5) = x^2 + 5x - 3x - 15

2. Combine like terms: x^2 + 5x - 3x - 15 = x^2 + (5x - 3x) - 15 = x^2 + 2x - 15

3. Now, let's simplify the second part of the expression: (x во 2 степени + x) (x во 2 степени + x) = x^2 + x

4. Substitute the above results back into the original expression: SOS (x-3)(x+5)-(x во 2 степени + x) = (x^2 + 2x - 15) - (x^2 + x)

5. Combine like terms: (x^2 + 2x - 15) - (x^2 + x) = x^2 + 2x - 15 - x^2 - x

6. Simplify further: x^2 - x^2 + 2x - x - 15 = 2x - x - 15 = x - 15

So, the simplified expression is x - 15.