Math, asked by rosylinchris, 9 months ago

factorise: a²-10a+21

Answers

Answered by ayushjha187100
8

Answer:

(a-7)(a-3) is the correct answer.

Attachments:
Answered by shreya050906
4

Answer:

 {a}^{2}  - 10a +  {21}^{2}  \\  {a}^{2}  - 3a - 7a +  {21}^{2}  \\ a(a - 3) - 7(a - 3) \\ (a - 3)(a - 7)

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