Przedstaw każde z poniższych wyrażeń w postaci sumy algebraicznej.
d) (x+2)³ - (x-2)(x²+2x+4)
e) (2x - 3)² - 4x(2x-6)+(x-5)²
f) (2x-5y)² - 4(2x+5y)²+(5y-3)(5y+3)-(2x-5)(2x+5)
g) (-2a-3b)² - (-b+2a)(-b-2a)
h) (2√2+4x)(4x-2√2)-2(2x-1/4)²
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d) x^3+6x^2+12x-x^3-2x^2-4x+2x^2+4x+8=6x^2+12x+8
e) 4x^2-12x+9-8x^2+24x+x^2-10x+25=-3x^2+2x+34
f) 4x^2-20xy+25y^2-4(4x^2+20xy+25y^2)+25y^2-9-4x^2+25=-20xy+50y^2-16x^2-80xy-100y^2+16=-100xy-16x^2-50y^2+16
g) 4a^2+12ab-9b^2-b^2+4a^2=8a^2+12ab-10b^2
h)16x^2-8-2(4x^2-1+1/16)=16x^2-8-8x^2+2-1/2=8x^2-6 i 1/2