AMLnZup1sdZEyJDIiG5OeA1L1NRe6TK53L8TT8K7AnvCg=s900ckc0x00ffffffnorj Math 10-2. X2 − 4x − 5 = 0. AMLnZup1sdZEyJDIiG5OeA1L1NRe6TK53L8TT8K7AnvCg=s900ckc0x00ffffffnorj X2 − 4x − 5 = 0. X2 − 4x − 5 = 0. X2 − 4x − 5 = 0.