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x*3² --> pole 2 figury
x+x*3²=300
x+ x*9 = 300
x+9x=300
10x=300I:10
x=30²
x* 3² = 30 * 3² = 30 * 9 = 270cm²
odp. Pole pierwszej figury wynosi 30cm² , a drugiej 270cm².