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Step-by-step explanation:
X intercept, y = 0
x² + 2x - 15 = 0
x² + 5x - 3x - 15 = 0
x(x + 5) - 3(x + 5) = 0
(x + 5)(x - 3) = 0
x = -5 and x = 3
X - Intercept = (-5 , 0) and (3 , 0)
Answer:
Step-by-step explanation:
x^2 + 2x - 15 = 0
(x - 3)(x + 5) = 0
x = 3 or x = -5
left-most x-intercept: (-5, 0)
right-most x-intercept: (3, 0)