Question

polynomials p(x)7x^4-3x^4+2x+5​

Answer 1

Step-by-step explanation:

$p(x) = 7 {x}^{4} - 3 {x}^{4} + 2x + 5$

$= > 4 {x}^{4} + 2x + 5 = 0$

$= >2x(2 {x}^{3} + 1) + 5 = 0$

$= > 2 {x}^{3} + 1 + 5 = 0$

$= > 2 {x}^{3} + 6 = 0$

$= > {x}^{3} = \frac{ - 6}{2}$

$= > {x}^{3} = - 3$

$= > x = \sqrt[ 3]{ - 3}$