Question

0
ax? + bx2 + cx + d = 0
In the equation above, a, b, c, and d are constants.
If the equation has roots -1, -3, and 5, which of the
following is a factor of ax’ + bx2 + cx + d ?​

Answer 1

Answer:

a = 1, b = -1, c = -17, d = -15

Step-by-step explanation:

the equation has roots -1, -3, and 5.

$(x - ( - 1))(x - ( - 3))( x - 5)$

$(x + 1)(x + 3)(x - 5)$

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

${x}^{3} - 5 {x}^{2} + {4x}^{2} - 20x + 3x - 15$

${x}^{3} - {x}^{2} - 17x - 15$