Question

Solve y=10x^3 + 5.5x^2 - 58.50x + 45.00

Answer 1

X = -3
X = 1.2
X = 1.25

Answer 2

x ∈ {-3, 1.2, 1.25}

Explanation:

"Solve" is non-specific as to the solution required. We assume you want the x-intercepts.

A graph shows the zeros to be ...

• x = -3
• x = 1.2
• x = 1.25

The equation can be factored as ...

y = (1/2)(x +3)(4x -5)(5x -6)