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True [87]
4 years ago
15

Determine where f(x) = x2 + 2x - 8 intersects the x-axis.

Mathematics
1 answer:
V125BC [204]4 years ago
8 0
Let f(x) =0.
{x}^{2}  + 2x - 8 = 0 \\ (x + 4)(x - 2) = 0 \\ x + 4 = 0 \\ x =  - 4 \\ x - 2 = 0 \\ x = 2
x=-4, 2
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