How do you simplify $(x^{3} + 2 x - 1) + (3 x^{2} + 4)$ $( x^3+2x-1)+(3x^2+4)$ ?

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Answer 1 · 2015-06-07T11:53:48

$(x^{3} + 2 x - 1) + (3 x^{2} + 4)$ $( x^3+2x-1)+(3x^2+4)$

$= x^{3} + 2 x - 1 + 3 x^{2} + 4$ $= x^3+2x-1+3x^2+4$

$= x^{3} + 3 x^{2} + 2 x - 1 + 4$ $= x^3+3x^2+2xcolor(red)(-1+4$

$= x^{3} + 3 x^{2} + 2 x + 3$ $= x^3+3x^2+2x+3$

How do you simplify ( x^3+2x-1)+(3x^2+4)(x3+2x−1)+(3x2+4)( x^3+2x-1)+(3x^2+4)?