Question

(i) x2 - 9x + 20 by x-5​

Answer 1

Here's the required answer to your question

Answer 2

Answer:

x-5=o

x=+5

${5}^{2} - 9 \times 5 + 20 \\ \\ 25 - 45 + 20 \\ 45 - 45 \\ = 0$