Factorize : 6-x-2x2

Matching exercise

    
Match the items on the right to the items on the left.
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Step 8
6-x-2x2=-2x2-x+6
=-2x2+12x-3
=-2x2+12x+142-142-3
=-2x2+2×14×x+142-116+3
=-2x+142-742
=-2x+14+74x+14-74
=-2x+2x-32
=-2x+3x+2