4. The factors of \( 2 x^{2}-8 \) are: \( 2\left(4 x^{2}\right) \) \( 2\left(x^{2}+4\right) \)

2. The sum of three consertitive whele numbers is 8 . I Ind the numbers.

0. Найдите значение выражения: а) \( (2 x-3)(2 x+3)-(2 x-1)^{2} \) при \( x=2,25 ; \) б) \( (3 a-4)^{2}+(3+4 a)^{2} \) при \( a=-7 ; \) в) \( 2 y(8 y+1)-(4 y-1)^{2} \) при \( y=1,8 ; \) г) \( (3 a+2)^{2}+6(3-2 a) \) при \( a=-3 ; \) д) \( (4 x+3)(4 x-3)-(4 x+5)^{2} \) при \( x=-0,5 ; \) е) \( (5 p-2)^{2}+(3 p-2)(3 p+2) \) при \( p=-0,1 \).

Factorize the expression \( x^{2}-1 \)

Example 5: Factoring Using the Binomial Theorem: Wirite \( 1+10 x^{2}+40 x^{4}+80 x^{6}+80 x^{8}+32 x^{10} \) in the form \( (a+b)^{n} \).

If \( \left(\frac{3}{4}\right)^{x}\left(\frac{2}{3}\right)^{y}=\frac{32}{27} \), find the values of \( x \) agy respectuely