Ah Yep My Bad Math Mistake

Text on the meme

l solution to the given equation. y' + 4y = 8 e⁻ˣ + cos x That's incorrect. Correct answer: D³ + 2D² − 7D + 4 Your answer: D³ + 2D² − 7D + 4 OK Ah yep my bad

What it means

A screenshot of an online differential-equation exercise shows an answer marked incorrect even though the displayed correct answer and the user’s answer appear identical. The caption “Ah yep my bad” sarcastically reacts to an absurd grading mistake, making it useful for situations where someone or something is obviously wrong but refuses to admit it. EN: A screenshot of an online differential-equation exercise shows an answer marked incorrect even though the displayed correct answer and the user’s answer appear identical. The caption “Ah yep my bad” sarcastically reacts to an absurd grading mistake, making it useful for situations where someone or something is obviously wrong but refuses to admit it.

Objects

computer screen / экран компьютера online math exercise / онлайн-упражнение по математике incorrect-answer dialog / окно с сообщением об ошибке mathematical equation / математическое уравнение differential operator / дифференциальный оператор OK button / кнопка OK answer field / поле ответа blue progress bar / синяя полоса прогресса gray interface / серый интерфейс