Question

упростите выражение
${(x - 1)}^{2} - (x + 3)(x - 3)$
пожалуста​

Answer 1

(x - 1)² - (x + 3)(x - 3 ) = x² - 2x + 1 - (x² - 9) = x² - 2x + 1 - x² + 9 = - 2x + 10

Answer 2

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