Question

А)x²-y² = Б) (a-3c)(a+3c)= в)127²-117²= г) а²-100y²= д)(2-x)²= е)25-x²= ж) (2х+3)³= З)с²+2с+1= К)4х²-у²= Л)х²-9у\6=

Answer 1

(x-y)(x+y)
a²-9c²
(127-117)(127+117)=10×244=2440
(a-10y)(a+10y)
4-4x+x²
(5-x)(5+x)
8х³+36х²+54х+27
(с+1)²
(2х-у)(2х+у)
л-? все ли правильно?

Answer 2

А)x²-y² =(x-y)(x+y)
Б) (a-3c)(a+3c)=a^2-9c^2
в)127²-117²=(127-117)(127+117)=10*244=2440
г) а²-100y²=(а-10у)(а+10у)
д)(2-x)²=4-4х+х^2
е)25-x²=(5-х)(5+х)
ж) (2х+3)³=4х^2+12х+9
З)с²+2с+1=(с+1)^2
К)4х²-у²=(2х-у)(2х+у)
Л)х²-9у\6=(напиши в комментах что такое 9у\6, и я решу в комментах последнее)

Answer 3

А) x² - y² = This is a difference of squares, which can be factored as (x + y)(x - y).

Б) (a - 3c)(a + 3c) = This is also a difference of squares, which can be factored as (a - 3c)(a + 3c).

В) 127² - 117² = This is a difference of squares, which can be factored as (127 + 117)(127 - 117).

Г) a² - 100y² = This is also a difference of squares, which can be factored as (a + 10y)(a - 10y).

Д) (2 - x)² = This is a perfect square, which can be expanded as 4 - 4x + x².

Е) 25 - x² = This is also a difference of squares, which can be factored as (5 + x)(5 - x).

Ж) (2x + 3)³ = This is a cube of a binomial, which can be expanded as 8x³ + 36x² + 54x + 27.

З) c² + 2c + 1 = This is a perfect square, which can be factored as (c + 1)².

К) 4x² - y² = This is also a difference of squares, which can be factored as (2x + y)(2x - y).

Л) x² - 9y/6 = This expression is not properly formatted. It seems like there might be a mistake in the equation. Please double-check and provide the correct equation.