( 2x + 7 ) ( 7x + 2 ) = … ?​

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( 2x + 7 ) ( 7x + 2 ) = … ?​

( 2x + 7 ) ( 7x + 2 )

= 2x(7x+2) + 7(7x+2)

= 14x² + 4x + 49x + 14

= 14x² + 53x + 14

Penjelasan dengan langkah-langkah:

( 2x + 7 ) ( 7x + 2 )

= (2x × 7x) + (2x × 2) + (7 ×7x) + (7×2)

= 14x² + 4x + 49x + 14

= 14x² + 53x + 14

CMIIW