Question

find ( x + 4) ( x + 8) using identity​

Answer 1

Answer:

( x +4)(x + 8)

= x² + ( 4 + 8)x + 4*8

= x² + 12x + 32

Step-by-step explanation:

identity used;; (x + a)(x + b) = x² + ( a + b)x + ab

other important identities ;;

1. ( a + b) ² = a² + b² + 2ab

2. (a - b) ² = a² + b² - 2ab

3. ( a² - b²) = (a + b)(a - b)

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Answer 2

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