Question

9a2+3a-8b-64b2 factorise​

Answer 1

Answer:

3a( 3a + 1 ) - 8b( 8b + 1) is the answer

Step-by-step explanation:

9a² + 3a - 8b - 64b²

→ 3a × 3a + 3a - 8b - 8b × 8b

→ 3a( 3a + 1 ) - 8b( 8b + 1)

Answer 2

Answer:

9a² + 3a - 8b - 64 b²

9a² - 64 b² + 3a - 8 b

{ ( 3a) ² - ( 8b ) ² } + 3a - 8b

( 3a + 8b ) ( 3a - 8 b ) + ( 3a - 8b )

(3a - 8b ) ( 3a + 8b +1 )

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