Soal Kumon Level H (2027)

Problem 8: x² - 4x - 12 = 0 . Multiply to -12, add to -4? -6 and +2. (x - 6)(x + 2) = 0 → x = 6, x = -2.

Rina smiled. “Done.”

For an hour, the algebra problems had stared back at her. Solve for x. Factor the quadratic. Find the two solutions. The H stood for Hard , Rina decided. Or maybe Hell . soal kumon level h

Then the magic trick: if the product is zero, one of the factors must be zero. Problem 8: x² - 4x - 12 = 0

x + 3 = 0 → x = -3