16p2-40p+25
Solve for p: 16 p^2-40 p+25 = 0 Divide both sides by 16: p^2-(5 p)/2+25/16 = 0 Write the left hand side as a square: (p-5/4)^2 = 0 Take the square root of both sides: p-5/4 = 0 Add 5/4 to both sides: Answer: | p = 5/4
