Question

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

Answer 1

Объяснение:

$(2x - 3)(x + 5) - (3 - x)(5 - 2x) - 20 \\ \\ 2x {}^{2} + 10x - 3x - 15 - (15 - 6x - 5x + 2x {}^{2} ) - 20 \\ \\ 2x {}^{2} + 10x - 3x - 15 - 15 + 11x - 2x {}^{2} - 20 \\ \\ 18x - 50$

" Torshkhoev_06 "

Answer 2

Let's simplify the expression step by step:

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

Expanding the first term: = (2x * x) + (2x * 5) + (-3 * x) + (-3 * 5) - (3 * 5) + (3 * 2x) - (x * 5) - (-x * 2x) - 20

Simplifying further: = 2x^2 + 10x - 3x - 15 - 15 + 6x - 5x + 2x^2 - 20

Combining like terms: = 2x^2 + 2x^2 + 10x + 6x - 3x - 5x + 2x^2 - 15 - 15 - 20

= 6x^2 + 8x - 50

Therefore, the simplified form of the expression (2x - 3)(x + 5) - (3 - x)(5 - 2x) - 20 is 6x^2 + 8x - 50.