How do you solve #(2u  7) ( 4+ u ) = 0#?
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To solve the equation (2u  7)(4 + u) = 0:

Set each factor equal to zero and solve for u separately: a) 2u  7 = 0 b) 4 + u = 0

Solve for u in each equation: a) 2u = 7 Divide both sides by 2: u = 7/2 or u = 3.5 b) u = 4

Combine the solutions: u = 3.5 or u = 4
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When evaluating a onesided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a onesided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a onesided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a onesided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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