Question

Efectuati reducerea termenilor asemenea:
a) -13x-15y+9x-(19x+3y-12x)+7y;
b) (5x-8y)-(11x+3y)-(-13x-5y);
c) (4x la puterea a 2-a -3y+2x)-(4x+6y-5x la puterea a 2-a)-(9x la puterea a 2-a -7y-3x)
Va rog sa ma ajutati, multumesc!

Answer 1

a) -13x-15y+9x-(19x+3y-12x)+7y= 15x-11y
b) (5x-8y)-(11x+3y)-(-13x-5y)=-19x-6y
c)(4x² -3y+2x)-(4x+6y-5x ²)-(9x² -7y-3x)=4y-5x