Bentuk sederhana dari (12x-15y) – (16x+5y) adalah…. 2(x-5y) – 4(7x+5y) adalah….

(12x-15y) – (16x+5y) = 12x-15y-16x-5y= -4x – 20y

2(x-5y) – 4(7x+5y) = 2x-10y – 28x – 20y = 2x – 28x -10y-20y =-26x – 30y

(12x-15y)-(16x+5y)
=12x-15y-16x-5y
=12x-16x -15y-5y
=-4x-20y

2(x-5y)-4(7x+5y)
=2x-10y-28x-20y
=2x-28x -10y-20y
=-26x-30y

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