Redirected from 853 BC
Decades: 900s BC 890s BC 880s BC 870s BC 860s BC - 850s BC - 840s BC 830s BC 820s BC 810s BC 800s BC
Significant People
... (i.e., in this case, a quantity that does not depend on x) to the expression to the left of "=", that will make it a perfect square trinomial of the form x2 + 2xy + ...