Question

(x-1)²-(x+2)²+3x²=-7x+1
ayuda

Answer 1

Respuesta:

$x^{3}$ = -1

Explicación paso a paso:

$x^{2}$ + 1 - $x^{2}$ + 4 + 3$x^{2}$ = -7x + 1

1 + 4 + 3$x^{2}$ = -7x + 1

5 + 3$x^{2}$ = -7x + 1

3$x^{2}$ + 7x = 1 - 5

10$x^{3}$ = 1

$\frac{10x^{3} }{5}$ = 1

2$x^{3}$ = 1

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

1 = -$x^{3}$

$x^{3}$ = -1