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Studentka2010 [4]
3 years ago
7

You are given a quadratic trinomial expression 7x^2+42x-49.

Mathematics
1 answer:
kondor19780726 [428]3 years ago
3 0

Step-by-step explanation:

7x² + 42x − 49

Factor using the AC method.

(x − 1) (7x + 49)

Set each factor to 0 to find the zeros.

x − 1 = 0, 7x + 49 = 0

x = 1, x = -7

These represent the x-intercepts of the graph y = 7x² + 42x − 49.

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