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D= (x+1)²+(2x+6)(2x-6)
D = x² +2x +1 + 4x² - 12x + 12x -36
D = 5x² +2x -35
E= (x-2)(x+2)-5(x+2)
E = x² +2x -2x -4 - 5x -10
E = x² -5x -14
D= (x+1)²+(2x+6)(2x-6)
D = x² +2x +1 + 4x² - 12x + 12x -36
D = 5x² +2x -35
E= (x-2)(x+2)-5(x+2)
E = x² +2x -2x -4 - 5x -10
E = x² -5x -14
D= (x+1)²+(2x+6)(2x-6)
=x²+2x+1+4x²-36
=5x²+2x-35
E= (x-2)(x+2)-5(x+2)
=x²-4-5x-10
=x²-5x-14
=x²+2x+1+4x²-36
=5x²+2x-35
E= (x-2)(x+2)-5(x+2)
=x²-4-5x-10
=x²-5x-14