Question

25. Find the following products using appropriate identities.
(i) (x + 3) (x + 3)
(ii) (x-3) (x + 5)
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Answer 1

Step-by-step explanation:

Ur answers : 1) x² + 6x + 9

2) x² + 2x - 15

For explanation, plz refer attachment..

Answer 2

Answer:

(i) x^2+6x+9

(ii) x ^2 + 2x – 15

Step-by-step explanation:

(i) (x+3) (x+3)

= (x+3)^2

= x^2 + 2(x)(3)+(3)^2

= x^2 + 6x + 9

(ii) (x – 3) (x + 5)

= x ^2 + (–3 + 5)x + (–3)(5)

= x ^2 + 2x – 15

Hope it will help