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Answer:
Step-by-step explanation:
Where the line crosses the x axis is when y equals zero. For this to be true one factor must be equal to zero
y=(x+3)(x-2)(x-5) if the expansion is needed
y=(x+3)(x^2-7x+10)
y=x^3-7x^2+10x+3x^2-21x+30
y=x^3-4x^2-11x+30