Question

q^2 - 10q + 21


factorise the expression​

Answer 1

Answer:

here is your solution ✌️.

Answer 2

To factorise

${q}^{2} - 10q + 21 \\ \rightarrow {q}^{2} - 7q - 3q + 21 \\ \rightarrow \: q(q - 7) - 3(q - 7) \\ \rightarrow \: (q - 3)(q - 7)$

THIS IS THE REQUIRED ANSWER .