Q. 205.0( 2 Votes )

# <span lang="EN-US

Answer :

Given: .

Subtracting both the sides by 2    Now dividing both the sides by 7  Signs of x:

x = 0

x < 0

x > 0

Signs of 4 – x:

4 – x = 0 x = 4

(Subtracting 4 from both the sides, then dividing by -1 on both the sides)

4 – x < 0 x > 4

(Subtracting 4 from both the sides, then multiplying by -1 on both the sides)

4 – x > 0 x < 4

(Subtracting 4 from both the sides, then multiplying by -1 on both the sides)

At x = 4, is not defined

Intervals satisfying the condition: < 0

x < 0 or x > 4

Therefore,

x є (-∞, 0) υ (4, ∞)

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