3 years ago

Rationalize the denominator 11/√8x

Mathematics

1 answer:

Nataliya [291]3 years ago

3 0

Answer:

$\frac{11 \times \sqrt{8} x}{8x ^{2}}$

Step-by-step explanation:

$\frac{11 \times \sqrt{8}x }{ \sqrt{8}x \times \sqrt{8} x}$

$\frac{11 \times \sqrt{8} x}{8x {}^{2} }$

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Step-by-step explanation:

The given quadratic equation is $x^2+4x-21=0$ . We need to find the solution of this equation.

If the equation is in the form of $ax^2+bx+c=0$ , then its solutions are given by :

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Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

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So, the solutions of the quadratic equation are 3 and -7.

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