Question

21. Find the product using suitable identity (x-3)(x+5).​

Answer 1

(x-3)(X+5)=X square - 13 x answer

Answer 2

Answer:

(x-3)(x+5)

${x}^{2} \: + \: 5x \: - \: 3x \: - \: 15$

${x}^{2} \: - \: 2x \: - \: 15$

Thankyou.

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