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3 years ago

Evaluate the expression 8-4xy^2 for x=3 and y=-2.

Mathematics

2 answers:

Dennis_Churaev [7]3 years ago

8 0

Answer:

-40 is the answer when plugging in x and y into the equation given

dusya [7]3 years ago

3 0

X-4xy^2
3-4*3*-2^2
3-12-4
-13

Just put the value and factorize it with BODMAS rule.

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Step-by-step explanation:

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4/5 ÷ 7/6 + 2/7 ∙2 1/5

Aleksandr [31]

<h2>The value of $\dfrac{4}{5}$ ÷ $\dfrac{7}{6}$ + $\dfrac{2}{7}.2\dfrac{1}{5}$ $=\dfrac{8}{7}$ </h2>

Step-by-step explanation:

We have,

$\dfrac{4}{5}$ ÷ $\dfrac{7}{6}$ + $\dfrac{2}{7}.2\dfrac{1}{5}$

To find, the value of $\dfrac{4}{5}$ ÷ $\dfrac{7}{6}$ + $\dfrac{2}{7}.2\dfrac{1}{5}$ = ?

∴ $\dfrac{4}{5}$ ÷ $\dfrac{7}{6}$ + $\dfrac{2}{7}.2\dfrac{1}{5}$

$=\dfrac{4}{5}\times \dfrac{6}{7} +\dfrac{2}{7}.\dfrac{8}{5}$

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$=\dfrac{8}{7}$

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Hence, the value of $\dfrac{4}{5}$ ÷ $\dfrac{7}{6}$ + $\dfrac{2}{7}.2\dfrac{1}{5}$ is equal to $\dfrac{8}{7} .$

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2 years ago

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Answer:

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Step-by-step explanation:

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x = 2

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