Question

x squared-9x+20 quadratic expression​

Answer 1

Answer:

$(x - 4)(x - 5)$

Step-by-step explanation:

${x}^{2} - 9x + 20 = {x}^{2} - 5x - 4x + 20 \\ \\ = x(x - 5) - 4x(x - 5) \\ \\ = (x - 4)(x - 5)$