Question

#335
Преобразуй произведение в сумму

1)(25+x)(x+3)
2)(y+5)(y+17)
3(k+2)(k+2)
3)(3+n)(3+n)

Answer 1

1)25х+25*3+х*x+3х2)y*y+17y+5y+5*17
3)kK+2k+2k+2*2
4)3*3+3n+3n++n*n