Question

multiplicação e polinomios

(2x-5).(5x-9)

Answer 1

(2x-5) . (5x - 9) = (2X . 5x) + (2x . - 9) + ( - 5 . 5x) + ( - 5 . - 9) = ( 10x² ) + ( - 18x ) + ( - 25x ) + ( - 45 ) = 10x² + 43x + 45