Question

5a²+3a-2a²=
-3+2+(×-3)-(5ײ-2)+ײ-4=
2×-+{8ײ-2×+(-3×+)}-4×+2=
reduce los términos semejantes y orden descendente ​

Answer 1

Respuesta:

$5a^{2} +3a-2a^{2} \\=5a^{2}+3a+-2a^{2}\\=5a^{2}+3a+-2a^{2}\\=(5a^{2}+-2a^{2})+(3a)\\=3a^{2}+3a$

$-3+2+x-3-(5x^{2} -2)+x^{2}-4\\=-3+2+x+-3+-5x^{2}+2+x^{2}+-4\\=-3+2+x+-3+-5x^{2}+2+x^{2}+-4\\=(-5x^{2}+x^{2})+(x)+(-3+2+-3+2+-4)\\=-4x^{2}+x+-6$

$2x-8x^{2} -2x-3x-4x+2\\=2x+-8x^{2} +-2x+-3x+-4x+2\\=2x+-8x^{2}+-2x+-3x+-4x+2\\=(-8x^{2})+(2x+-2x+-3x+-4x)+(2)\\=8x^{2}+-7x+2$