Question

упростить выражение!!!!!!!!!!​

Answer 1

$(x-1)^{2} -(x+3)(x-3) = x^{2} -2x+1-(x^{2} -9) = x^{2} -2x+1-x^{2} +9=-2x+10$

Answer 2

Ответ:

...=x²-2x+1-(x²-9)=x²-2x+1-x²+9=-2x+10