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Ne4ueva [31]
2 years ago
7

Express the solution of, x^3 + 2x^2 < x + 2, using interval notation.

Mathematics
1 answer:
Rudiy272 years ago
6 0

x³ + 2x² - x - 2 < 0

x³ - x + 2x² - 2 < 0

x(x² - 1) - 2(x² - 1) < 0

(x - 2)(x² - 1) < 0

(x - 2)(x - 1)(x + 1) < 0

by chacking we get the solution

x ∈ (-∞,-1) ∪ (-1,1)

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Step-by-step explanation:

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1 year ago
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3 years ago
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5) Solve: 2.4p + 6 = 48​
KatRina [158]

Answer:

p = 17.5

Step-by-step explanation:

This is the answer because:

1) First, we have to isolate x

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3) Now we are left with 2.4p = 42

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