Answer:you can't solve x² - 36 = 0 using completing the square because it has no b. 3 parts of the quadratic equation ax² = first termbx = second termc = constantthe equation x² - 36, as we can see, it has only the first term and the constant. completing the square requires the half of b and squaring it. thus, the absence of the second term (bx) is the reason why completing the square is not applicable. Step-by-step explanation:sana clear po yung explanation. di ako magaling sa english e hahah. yung x² - 36 = 0, wala po kase syang b. kaya walang gagamitan ng completing the square. ang pwede iapply jan sa equation ay extracting the square root.sana makatulong. have a nice day!