What are the zeros of the polynomial x2+4x-12

1 answer:

3 0

Hi,
$x^2+4x-12=0\\

\Rightarrow\ x^2+6x-2x-12=)0\\
\Rightarrow\ x(x+6)-2(x+6)=0\\
\Rightarrow\ (x+6)(x-2)=0\\

\boxed{\Rightarrow\ x=-6\ or\ x=2}\\

$

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Answer:

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Step-by-step explanation:

Clare uses $9\frac{1}{3}$ cups of flour to make 4 cakes.

It means she uses 1 cup of flour to make $4\div9\frac{1}{3}$ cakes.

Let us simplify that expression first for future use.

$4\div9\frac{1}{3}=4\div\frac{28}{3} =4 X \frac{3}{28} =\frac{3}{7}$

Therefore, Clare uses 1 cup of flour to make $\frac{3}{7}$ cakes.

If Noah follows the same recipe,

He uses f cups of flour to make c cakes

Using Ratio Method

→ Name : Cup : Cake

→ Clare : 1 : $\frac{3}{7}$

→ Noah : f : c

By using cross multiplication

c X 1 = $\frac{3}{7}$ f

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The equation c= $\frac{3}{7}$ f represents the relationship between c and f

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Answer= -54

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