jose668141 jose668141 09-04-2024 Mathematics contestada If D, equals, 2, minus, 9, n, squaredD=2ā9n 2 and C, equals, n, plus, 3, plus, 4, n, squared, commaC=n+3+4n 2 , find an expression that equals 3, D, minus, C3DāC in standard form.