Which of the following is an example of an identity?
1) x^2+2x+8=(x+2)(x+4)
2) 2x(x-3)+5x-15=(2x+5)(x-3)
3) x^2+9=(x+3)^2
4) x^3+8=(x+2)(x^2+4)
Pleeeaas help mee:( I’ve been struggling all day

i have no clue at all sorry

step-by-step explanation:

you are uyytr tyy

step-by-step explanation:

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.