19×19=361
27×27×27×27=531,441
361×531,441=191,850.201
если m3=6?, тo m6=m3+m3=6+6=12
12-31=19
3x+3+14-4x=0
-x=-17
x=17
Ответ:17
<em>4√2*2√17*√34=4*(√2)²*2(√17*)²=8*2*17=8*34=</em><em>272</em>
<span>а)х4-25х2+144=0</span>
<span>х2=у</span>
<span>у2-25у+144=0</span>
<span>По теореме Виета: у=16; у=9</span>
<span>1)х2=16 2)х2=9</span>
<span> х=-4; х=4 х=-3; х=3</span>
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</span>
<span>б)у4+14у2+48=0</span>
<span>х2=у</span>
<span>у2+14у+48=0</span>
<span>По теореме Виета: у=-8; у=-6</span>
<span>1)х2=-8 2)х2=-6</span>
<span>реш.нет реш.нет</span>
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</span>
<span>в)х4-4х2+4=0</span>
<span>х2=у</span>
<span>у2-4у+4=0</span>
<span>(у-2)2=0</span>
<span>у=2</span>
<span>х2=2</span>
<span>х=-√2 х=√2</span>