Question

Efetue as adições de polinomios :
a) = ( 6x² + 8x -3 ) + ( - 2x² - 5x -1 ) =


b) = ( -2x + 3y) + ( 9x - 7y ) =

Answer 1

a) = ( 6x² + 8x -3 ) + ( - 2x² - 5x -1 ) =
6x²-2x²=4x²
8x-5x= -3x
-3-1=-4
Sendo---> 4x²-3x-4
b) = ( -2x + 3y) + ( 9x - 7y ) =
-2x+9x= 7x
3y-7y= -4y
Sendo ---> 7x-4y