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3 years ago

Can someone help me with N please

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

7 0

Let's assume x Mo's number.

11+x/3=-1
==>x/3=-1-11
==>x/3=-12
==>x=-12*3
==>x=-36

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2 years ago

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DochEvi [55]

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3 years ago

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Aliun [14]

The three roots of x^3 + 7x^2 + 12x = 0 is 0,-3 and -4

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We have been given a cubic polynomial.

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Since it is a cubic polynomial, we can start by taking ‘x’ common from the equation.

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By substituting the values of a,b and c in the quadratic equation we get;

$\begin{array}{l}{x=\frac{-7 \pm \sqrt{7^{2}-4 \times 1 \times 12}}{2 \times 1}} \\\\{x=\frac{-7 \pm \sqrt{1}}{2}}\end{array}$

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