(3а+2b )*(5a-b)= (X+3)*(x^2+2x-6)= b(b+1-3(b+1)= (a^2-b^2)*(2a+b)-an(a+b)=

Question

(3а+2b )*(5a-b)= (X+3)*(x^2+2x-6)= b(b+1-3(b+1)= (a^2-b^2)*(2a+b)-an(a+b)=

Answer 1

вот, вроде так должно быть

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