Zamień na iloczyn:
a)
b)
a) .... = 11²- (x - 11)² = [ 11 - (x - 11) ] [ 11 + (x - 11)] = (11 - x + 11)(11 + x - 11) = (22 - x) * x
b)... = 2² - (x - y)² = [(2 - (x - y)][(2 + (x - y)] = (2 - x + y)(2 + x - y)
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a) .... = 11²- (x - 11)² = [ 11 - (x - 11) ] [ 11 + (x - 11)] = (11 - x + 11)(11 + x - 11) = (22 - x) * x
b)... = 2² - (x - y)² = [(2 - (x - y)][(2 + (x - y)] = (2 - x + y)(2 + x - y)