Question

(x-3) (x²+2x-9) =?8 клас ​

Answer 1

Объяснение:

дивись .................,

Answer 2

To simplify the expression (x-3)(x²+2x-9), we can use the distributive property of multiplication over addition/subtraction. Let's start by multiplying each term in the first binomial (x-3) by every term in the second binomial (x²+2x-9):

(x-3)(x²+2x-9) = x(x²+2x-9) - 3(x²+2x-9)

Now, distribute x and -3 respectively:

= x³ + 2x² - 9x - 3x² - 6x + 27

Combine like terms:

= x³ - x² - 15x + 27

Therefore, the simplified expression is x³ - x² - 15x + 27.