Answer:
Explanation:
DONT distribute the exponent
Instead, expand it to (x-2)*(x-2)
Multiply the First terms, Outer terms, Inner terms, then Last terms (FOIL)
Writing it out: (x*x) + (x*-2) + (-2*x) + (-2*-2)
Simplify: x^2 - 2x - 2x + 4
Answer: x^2 - 4x + 4