Q. 24.3( 9 Votes )

(3q + 7p2 – 2r3 + 4) – (4p2 – 2q + 7r3 – 3) = ?
A.

B.

C.

D.

Answer :


After solving the bracket,


we get,


= 3q + 7p2 – 2r3 + 4 – 4p2 + 2q – 7r3 + 3 = 7p2 – 4p2 + 3q + 2q – 2r3 – 7r3 + 3 + 4


= 3p2 + 5q – 9r3 + 7

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