Question

q2 -10q+21 factorise this​

Answer 1

Answer:

q^2-7q-3q+21=0

q(q-7) -3(q-7) =0

(q-3) (q-7) =0

q=3

q=7

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Answer 2

Answer:

(q-7)(q-3)

Step-by-step explanation:

GIven = q²-10q+21

= q²-3q-7q+21

= q(q-3)-7(q-3)

= (q-7)(q-3)