Question

Упростить (x+3)^2-(x-2)(x+2)

Answer 1

$(x+3)^2-(x-2)(x+2)=x^2+6x+9-x^2+4=6x+13$

Answer 2

${x}^{2} + 6x + 9 - ( {x}^{2} - 4) = \\ = {x}^{2} + 6x + 9 - {x}^{2} + 4 = \\ = 6x + 13$