Subtract the polynomials (7.8x - 3.4y + z) and (-9.2x + 4.8y - 2.1z), then place the answer in the proper location on the grid. Write answer in x-y-z order and include the tenths place.
Accepted Solution
A:
Subtracting the polynomials will give us: (7.8x-3.4y+z)-(-9.2x+4.8y-2.1z) =(7.8x+9.2x)+(-3.4y-4.8y)+(z+2.1z) =17x-8.2y+3.1z