plz answer question no 8
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let the no. added be a
a+4x^2+3x^3+11=7x^3+12x^2+23
a=7x^3-3x^3+12x^2-4x^2+23-11
a=4x^3+8x^2+12
a+4x^2+3x^3+11=7x^3+12x^2+23
a=7x^3-3x^3+12x^2-4x^2+23-11
a=4x^3+8x^2+12
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