Polynomials

Adding

100

The problem is 10a+4+2a.

Is it 12a²+4?

200

The problem is 10+12a+14b+2.

Is it 12+12a+14b?

300

The problem is 10+7x+3y+2+x.

Is it 12+8x+3y?

400

The problem is 8x+7+1b+8x+6c+b.

16x+2b+6c+7.

500

The problem is 1+1+1+2a+2a+2a+3b+3b+3b+4c+4c+4c+4c+x+ 2x

Is it 3+6a+9b+16c+3x?

Subtracting

100

The problem is 4-2+2a-3a.

Is it 2-1a?

200

The problem is 2+3x-4-7x.

Is it -2-4x.