Answer:
Step-by-step explanation:
base of ladder is x feet from house
top of ladder is x+1 feet from ground
By the Pythagorean Theorem,
x² + (x+1)² = 5²
x² + (x² + 2x + 1) = 25
2x² + 2x - 24 = 0
x = -4, 3
-4 is an extraneous solution, so x = 3 ft
base of ladder is 3 feet from house
top of ladder is 4 feet from ground