Step 1: x(x-7y) + 4y(x-7y)+z(x-7y) Step 2: x²-7xy + 4yx-28y² + zx-7zy
Step 3: x²-7xy + 4xy-28y²+xz - 7yz
Step 4: x²-3xy-28y² + xz-7yz
entify the property used in each of the steps:
Step 1: Distributive Property
Step 2: Combining like terms
Step 3: Distributive Property
Step 4: Combining like terms