Question

Question- Factorise x2 + 9x + 20

step by step explain please​

Answer 1

Answer:

${x}^{2} + 9x + 20 \\ by \: middle \: term \: splitting \\ {x}^{2} + (5 + 4)x + 20 \\ {x}^{2} + 5x + 4x + 20 \\ x(x + 5) + 4(x + 5) \\ (x + 4)(x + 5)$

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Answer 2

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