Expression with last digits different

HINT : $$(x+3)(x+4)-(x+5)(x+2)=3\times 4-5\times 2$$

Hint $\ a\!+\!b = c\!+\!d\,\Rightarrow\, (x\!+\!a)(x\!+\!b)-(x\!+\!c)(x\!+\!d) = ab\!-\!cd,\ $ and conversely.

Hint: Let $a=123456789$. Then your problem can be written as $(10a+3)(10a+4)-(10a+5)(10a+2)$