- How does "x^2-4x+4=49" come from "(x-2)^2=49"? Where does the "-4x" come from?

Discover Questions

A car traveling 34 mi/h accelerates uniformly
for 6.3 s, covering 557 ft in this time.
What was its acceleration? Answer in ft/s .? What factors influence the reactivity of lime with acid soils? How many different substances are in a saturated solution of sugar (sucrose) in water? What is the answer for x in this problem: 6 - x divided by 2 = 4? Is universe or are universes?