Math, asked by Mallikarju3944, 10 months ago

Factorise x square - 5 x - 21

Answers

Answered by Shreyasanjivani

0

Answer:

(X+3)(x-7)

Step-by-step explanation:

x^2-5x-21

splitting the middle term

x^2-7x+3x-21

x(x-7)+3(x-7)

(X+3)(x-7)

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