a) 9²+x²=15²
81+x²=225
x²=225-81
x²=144
x=12
b) 7²+4²=x²
49+16=x²
x²=65
x=√65
c) x²+4²=9²
x²+16=81
licze na naj;))
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a) 9²+x²=15²
81+x²=225
x²=225-81
x²=144
x=12
b) 7²+4²=x²
49+16=x²
x²=65
x=√65
c) x²+4²=9²
x²+16=81
x²=65
x=√65
licze na naj;))