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Alona [7]
2 years ago
13

Which point is an x-intercept of the quadratic function f(x)=(x-4)(x+2)

Mathematics
1 answer:
Mademuasel [1]2 years ago
3 0

Answer:

x = - 2 or x = 4

Step-by-step explanation:

To find the x- intercepts let f(x) = 0, that is

(x - 4)(x + 2) = 0

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x + 2 = 0 ⇒ x = - 2

The x- intercepts are at x = - 2, x = 4

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