Question

(x+2)^2-(x-3)(x+3)
^-это степень

Answer 1

$(x + 2) {}^{2} - (x - 3)(x + 3) \ x {}^{2} frac{}{} + 4x + 4 - (x {}^{2} - 9) \ x {}^{2} + 4x + 4 - x { }^{2} + 9 \ 4x + 4 + 9 \ 4x + 13$