Final answer:
To isolate x² in the equation, add 36² to both sides, then divide both sides by 10.
Step-by-step explanation:
To isolate x² in the equation 10x² - 36² = 100, we need to get rid of the constant term first. First, we add 36² to both sides of the equation to get 10x² = 100 + 1296. Simplifying further, we have 10x² = 1396. Next, to isolate x², we divide both sides of the equation by 10, resulting in x² = 139.6.
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