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larisa [96]
3 years ago
11

What is the distance between the solutions to the quadratic equation x2 – 7x + 10 = 28

Mathematics
1 answer:
Kryger [21]3 years ago
4 0

Answer:

11

Step-by-step explanation:

Given

x² - 7x + 10 = 28 ( subtract 28 from both sides )

x² - 7x - 18 = 0 ← in standard form

(x - 9)(x + 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 9 = 0 ⇒ x = 9

x + 2 = 0 ⇒ x = - 2

The distance between the solutions is

| 9 - (- 2) | = | 11  = 11 units

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