NA DZIŚ!!!
Zapisz wyrażenie w postaci kwadratu sumy lub kwadratu różnicy.
a) x² + 12x + 36 =
b) 100k² - 40k + 4 =
c) a²b² + 10ab + 25 =
d) 3t² + 2√6 tu + 2u² =
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a)...=x²+2*x*6 + 6² =(x+6)²
b)...=(10k)²-2*10k*2 +2²=(10k-2)²
c)...=(ab)²+2*ab*5 + 5² = (ab+5)²
d)...= (√3t)²+ 2*√3t*√2u + (√2u)² = (√3t + √2u)²