Question

Oblicz, nie zapominając o redukcji wyrazów podobnych.

1. 8a - 2b + 2 - (2c + kb + 1)

2. -8a + 4h + 2ab + (-b + ab + b - 1)

3. -2 + 3c + 1 - (2c - s + tc + 1)

Answer 1

1. 8a - 2b + 2 - (2c + kb + 1)=8a - 2b + 2 - 2c -kb - 1=8a - 2b -2c -kb +1

2. -8a + 4h + 2ab + (-b + ab + b - 1)= -8a + 4h + 2ab -b + ab + b - 1 = -8a + 4h +3ab -1

3. -2 + 3c + 1 - (2c - s + tc + 1)= -2 + 3c + 1 - 2c + s - tc - 1=-2 +c +s -tc

Answer 2

1. 8a-2b+2-(2c+kb+1)= 8a-2b+2-2c-kb-1=8a-2b-2c-kb+1

2. -8a+4h+2ab+(-b+ab+b-1)=  -8a+4h+2ab-b+ab+b-1= -8a+4h+3ab-1

3. -2+3c+1-(2c-s+tc+1)=  -2+3c+1-2c+s-tc-1= -2+c+s-tc