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The number which should be subtracted from 5a^2-3ab+7b^2 to make it equal to a^2+ab+b^2 is

A³ - 3ab(a - b) - b³ is equal to

A³ + 3ab(a + b) + b³ is equal to

A³-3ab(a - b) - b³ is equal to

In the following questions the symbols @, с, £, ? and $ are used with the following meanings:'[email protected]' means 'A is neither equal to nor smaller than B'.'AсB' means 'A is neither greater nor smaller tha

In the following given below, certain symbols are used with the following meanings:'[email protected]' means 'A is greater than B'.'A+B' means 'A is either greater than or equal to B'.'A÷B' means 'A is smaller tha

In the following questions the symbols +, ×, ?, @ and $ are used with the following meanings:'P+Q' means 'P is neither smaller nor greater than Q'.'P×Q' means 'P is neither equal to nor smaller than