Zastosuj wzór skr mnożenia
(2x-3)do kwadratu/ 4
Wzór:
(a-b)^2 = a^2 -2ab + b^2
[(2x)^2 - 12x +9]/4 = (4x^2 -12x +9)/4 = x^2 - 3x + 2,25
WYNIK: x^2 - 3x +2,25
^2 - do kwadratu
(2x - 3)² / 4 =[ (2x)² - 2 * 2x * 3 + 3² ] / 4 = (4x² - 12x + 9) / 4 = x² - 3x + 9/4
wzór:
(a - b)² = a² - 2ab + b²
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Wzór:
(a-b)^2 = a^2 -2ab + b^2
[(2x)^2 - 12x +9]/4 = (4x^2 -12x +9)/4 = x^2 - 3x + 2,25
WYNIK: x^2 - 3x +2,25
^2 - do kwadratu
(2x - 3)² / 4 =[ (2x)² - 2 * 2x * 3 + 3² ] / 4 = (4x² - 12x + 9) / 4 = x² - 3x + 9/4
wzór:
(a - b)² = a² - 2ab + b²