Question

Find the value of n such that x2 – 19x + n is a perfect square trinomial.

Answer 1

Divide -19 by 2 then square it to get the last term

-19 / 2 = -9.5 and (-9.5)^2 = 90.25

Answer n = 90.25

Answer 2

361/4 should be the correct answer,let me know if it's not:)