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2 years ago

Write the expression in factored form. m^4 - n^2

Mathematics

2 answers:

tester [92]2 years ago

8 0

$m^4-n^2=(m^2-n)(m^2+n)$

JulsSmile [24]2 years ago

8 0

(m^2+n)(m^2-n) is the factored form.

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What is the value of x and y when x = 9/4 and y = 3/5

zvonat [6]

Answer:

9/4 = 2.25 and 3/5=.6

Step-by-step explanation:

9/4 also equals 2 1/4'

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2 years ago

Solve this one step equation<br> -6+y=2

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Answer:

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Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B%28-81%29x%5E%7B2%7D%20%7D" id="TexFormula1" title="\sqrt{(-81)x^{2} }" alt="\sqrt{(

SSSSS [86.1K]

Answer:

We conclude that:

$\sqrt{\left(-81\right)x^2}=9ix$

Step-by-step explanation:

Given the radical expression

$\sqrt{\left(-81\right)x^2}$

simplifying the expression

$\sqrt{\left(-81\right)x^2}$

Remove parentheses: (-a) = -a

$\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}$

Apply radical rule: $\sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0$

$=\sqrt{-1}\sqrt{81x^2}$

Apply imaginary number rule: $\sqrt{-1}=i$

$=i\sqrt{81x^2}$

Apply radical rule: $\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0$

$=\sqrt{81}i\sqrt{x^2}$

$=9i\sqrt{x^2}$

Apply radical rule: $\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0$

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Therefore, we conclude that:

$\sqrt{\left(-81\right)x^2}=9ix$

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2 years ago

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dolphi86 [110]

Answer:

It's B

Step-by-step explanation:

Just divide y by x. For example: 6.6 / 6 = 1.1. This would be B! Hope this helps!

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