Question

factorise x^2 -61x+900

Answer 1

x²-61x+900

x²-36x-25x+900

x(x-36)-25(x-36)

(x-25)(x-36)

Answer 2

${x}^{2} - 36x - 25x + 900$

$x(x - 36) - 25(x - 36) \\ ( x - 36)(x - 25)$