Use the x-intercept method to find all real solutions of the equation.
1 answer:
Answer:
<h3>D,x=-1,2,or 5</h3>
<h3>
Step-by-step explanation:</h3>
<h3>1. Factor x³-6x² + 3x + 10 = 0</h3>
(x + 1)(x + 2)(x + 5)=0
<h3>2. Using the Zero Factor Principle : If ab=0 then a=0 or b=0</h3>
x + 1 = 0 or x - 2 = 0 or x - 5 = 0
- Solve x + 1 = 0 : x = -1
- Solve x - 2 = 0 : x = 2
- Solve x - 5 = 0 : x = 5
<h3>The solutions are</h3>
x = -1 , x = 2 , x = 5
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