Can you solve this nice square root math problem with variable

array(10) { [0]=> object(stdClass)#4411 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "fyzj8wwKPGA" ["related_video_title"]=> string(38) "Finding Square root by division method" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(14) "Sohael Babwani" } [1]=> object(stdClass)#4384 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "opdMiQxWmZ0" ["related_video_title"]=> string(66) "Japanese | Can you solve this? | Math Olympaid Exponential Problem" ["posted_time"]=> string(21) "6 дней назад" ["channelName"]=> string(15) "Maths Explorer " } [2]=> object(stdClass)#4409 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "w0l3bz6fHEE" ["related_video_title"]=> string(35) "Задача века решена!" ["posted_time"]=> string(27) "9 месяцев назад" ["channelName"]=> string(36) "Математика и фокусы" } [3]=> object(stdClass)#4416 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "MSAjiRuUmxY" ["related_video_title"]=> string(67) "Canada | Square Root Trick | Nice Olympiad Math Question 📕✍️" ["posted_time"]=> string(22) "22 часа назад" ["channelName"]=> string(19) "EssEssBii Education" } [4]=> object(stdClass)#4395 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "GIu4-K_VevM" ["related_video_title"]=> string(87) "How to find Square root of any number..?? || Class 8th, 9th and 10th || Galaxy of Maths" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(15) "Galaxy of Maths" } [5]=> object(stdClass)#4413 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "LgoIFtsmvzE" ["related_video_title"]=> string(57) "Square Root of Any Number in 3 seconds - Crazy Math Trick" ["posted_time"]=> string(25) "2 месяца назад" ["channelName"]=> string(13) "Brain Station" } [6]=> object(stdClass)#4408 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "nQgkZZgnt0A" ["related_video_title"]=> string(58) "How to derive formulas of the roots of Quadratic Equations" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(13) "IQ Initiative" } [7]=> object(stdClass)#4418 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "ezvdTMT8X5U" ["related_video_title"]=> string(104) "Ященко ПОЯСНИЛ за ЕГЭ 2025?! Разбор ответа составителей ЕГЭ" ["posted_time"]=> string(21) "9 дней назад" ["channelName"]=> string(79) "Профиматика | Профильная математика | ЕГЭ2025" } [8]=> object(stdClass)#4394 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "nxqMDxnHCuI" ["related_video_title"]=> string(102) "Это был полный П***Ц! Этот ПАРАМЕТР не решил НИКТО | ЕГЭ 2025" ["posted_time"]=> string(25) "2 недели назад" ["channelName"]=> string(79) "Профиматика | Профильная математика | ЕГЭ2025" } [9]=> object(stdClass)#4412 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "XimX09--Pr4" ["related_video_title"]=> string(43) "Square Root in 3 seconds - Crazy Math Trick" ["posted_time"]=> string(27) "7 месяцев назад" ["channelName"]=> string(13) "Brain Station" } }