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General Tips for Choosing Function

Applying zero...

Question

Applying zero product rule for the equation $(x - 4) (x + 1) = 0$ , either $x - 4 = 0$ or

x - 1 = 0

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x + 1 = 0

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x = 0

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x - 4 = 0

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Solution

The correct option is A $x + 1 = 0$
Given, $(x - 4) (x + 1) = 0$
Applying zero product rule for the equation
$(x - 4) (x + 1) = 0$ , either $x - 4 = 0$ or $x + 1 = 0$

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a

b .

\frac{1}{x + 1} + \frac{2}{x + 2} = \frac{4}{x + 4}

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x + 4 \neq 0

y^{2} = 4 x

x^{2} = 4 y

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