Przedstaw wyrażenie w postaci różnicy kwadratu lub kwadratu sumy, kwadratu różnicy.
a ) 4y^2 - 13y + 10 9/16 = ?
b) (-3 + 4i) * (4i + 3) = ?
c) 9/4 x^2 + xy + 1/9 y^2 = ?
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) 4y^2 - 13y + 10 9/16 = (2y-13/)^2
b) (-3 + 4i) * (4i + 3) = (4i-3)(4i+3) różnica kawdratów
c) 9/4 x^2 + xy + 1/9 y^2 = (3/2x+1/3y)^2 kwadrat sumy