помогите:)) знак * означает во 2 степени
1) 4а*+4ав+в*
2) 81х*-у*
3)25-36р*с*
1)(2а+в)*
2)(9х-у)(9х+у)
3)(5-6рс)(5+6рс)
1.(2а+в)*
2. (9х-у)(9х+у)
3.(5-6рс)(5+6рс)
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1)(2а+в)*
2)(9х-у)(9х+у)
3)(5-6рс)(5+6рс)
1.(2а+в)*
2. (9х-у)(9х+у)
3.(5-6рс)(5+6рс)