wykonaj wskazane dzialanie i przeprowadz redukcje wyrazow podobnych (2x+3)kwadrat-(x-3)kwadrat+2(3x+2)(3x=2)
(2x+3)² - (x-3)² + 2(3x+2)(3x+2) = 4x² + 12x + 9 - (x² - 6x + 9) + 2(9x² + 6x + 6x + 4) =
4x² + 12x + 9 - x² + 6x - 9 + 18x² + 12x + 12x + 8 = 21x² + 42x + 8
[2x+3]^-[x-3]^+2[3x+2][3x-2]=4x^+12x+3^-[x^-6x+3^]+2[9x^-6x+6x-4]=4x^+12x+9-x^+6x+9+18x^-8=21x^+18x+10
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(2x+3)² - (x-3)² + 2(3x+2)(3x+2) = 4x² + 12x + 9 - (x² - 6x + 9) + 2(9x² + 6x + 6x + 4) =
4x² + 12x + 9 - x² + 6x - 9 + 18x² + 12x + 12x + 8 = 21x² + 42x + 8
[2x+3]^-[x-3]^+2[3x+2][3x-2]=4x^+12x+3^-[x^-6x+3^]+2[9x^-6x+6x-4]=4x^+12x+9-x^+6x+9+18x^-8=21x^+18x+10