Question

(а-2х)²срочно нужно. ​

Answer 1

По формуле:

(a-b)^2= a^2-2ab+b^2

(a-2x)^2=a^2-2a×2x+(2x)^2= a^2-4ax+4x^2

Answer 2

(а - 2х)² = (а - 2х) * (а - 2х)

To expand this expression, we can use the FOIL method:

FOIL stands for First, Outer, Inner, Last, which represents the order in which you multiply the terms.

First: Multiply the first terms of each binomial: а * а = а² Outer: Multiply the outer terms of each binomial: а * (-2х) = -2ах Inner: Multiply the inner terms of each binomial: (-2х) * а = -2ах Last: Multiply the last terms of each binomial: (-2х) * (-2х) = 4х²

Now, we can combine the results:

а² - 2ах - 2ах + 4х²

Simplifying further:

а² - 4ах + 4х²

Therefore, (а - 2х)² expands to а² - 4ах + 4х².