Ax+bx-ay-by:bx-by Cократите дробь

Question

Ax+bx-ay-by:bx-by Cократите дробь

Answer 1

1) AX + BX - AY - BY = X * ( A + B ) - Y * ( A + B ) = ( A + B)*( X - Y )
2) BX - BY = B * ( X - Y ) 
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[ ( A+ B)*( X - Y ) ] / [ B * ( X - Y ) ] = ( A + B ) / B