Question

a) (4x^3 + 2×^2 - 5×) + (9×^2 - 4×)


b) (2y^4 + 4y^3) - (2y^2 + 3y^3)


c) (19y^5 + 12x^3 - 3x^2) + (x^5 - 10x^3 + x^2)
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Answer 1

Resposta:

a) (4x^3 + 2×^2 - 5×) + (9×^2 - 4×)

$4 {x}^{3} + 2 {x}^{2} - 5x + 9 {x}^{2} - 4x \\ 4 {x}^{3} + 11 {x}^{2} - 9x$

b) (2y^4 + 4y^3) - (2y^2 + 3y^3)

$2 {y}^{4} + 4 {y}^{3} - 2 {y}^{2} - 3 {y}^{3} \\ 2 {y}^{4} + {y}^{3} - 2 {y}^{2}$

c) (19y^5 + 12x^3 - 3x^2) + (x^5 - 10x^3 + x^2)

$19 {y}^{5} + 12 {x}^{3} - 3 {x}^{2} + {x}^{5} - 10 {x}^{3} + {x}^{2} \\ {x}^{5} + 19 {y}^{5} + 2 {x}^{3} - 2 {x}^{2}$