Question

find product use suitable identity :

1) (x+8) (x-6)
2) (2x+3) (2x-4) ​

Answer 1

Answer:

Answer

1) x² + 2x + 48

2) 4x² - 2x - 12

Step-by-step explanation:

1) ( x + 8 ) ( x - 6 )

→ Identity :- ( x + a ) ( x - b ) = x² + ( a + b )x + ab

→ ( x + 8 ) ( x - 6 )

→ x² + { 8 + ( - 6 ) }x + { 8 × ( -6 ) }

→ x² + 2x - 48 ← Answer

2) ( 2x + 3 ) ( 2x - 4 )

→ Identity :- ( x + a ) ( x - b ) = x² + ( a + b )x + ab

→ ( 2x + 3 ) ( 2x - 4 )

→ 4x² + { 3 + ( -4) }2x + { 3 × ( -4) }

→ 4x² - 2x - 12 ← Answer.

hope this helps you.