Вопрос школьника по предмету Алгебра
x=(a^2-b^2):(a-b)^2:b
Ответ учителя по предмету Алгебра
1) ( а^2 — b^2 ) : ( a — b )^2 = ( ( a — b )( a + b )) : ( ( a — b )( a — b )) = ( a + b ) / ( a — b )
2) ( a + b )/( a — b ) : b = ( a + b ) /( b( a — b )) = ( a + b ) / ( ab — b^2 )
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