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3 years ago

15

f 5 + x = 12, and you add -5 to the left side of equation, what should you add to right side of equation?

1 answer:

umka21 [38]3 years ago

7 0

Hi there! :)

<u><em>Answer:</em></u>

<em><u>x=7</u></em>

<em><u>*The answer must have a positive sign.*</u></em>

Step-by-step explanation:

<h2><u><em>Lesson: Addition/Subtraction/Multiplication/and Division property of equality</em></u></h2>

First, you switch sides of an equation.

$x+5=12$

Then, you subtract by 5 from both sides of an equation.

$x+5-5=12-5$

You subtract by the numbers from left to right.

$12-5=7$

<u><em>Final answer is x=7</em></u>

I hope this helps you!

Have a nice day! :)

:D

-Charlie

Thank you! :)

:D

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2 years ago

What are the possible rational roots of the polynomial equation?<br><br> 0=2x7+3x5−9x2+6

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Answer: $\pm\frac{1}{1}, \pm\frac{1}{2},\pm\frac{2}{1},\pm\frac{3}{1}, \pm\frac{3}{2}$

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We can use the Rational Root Test.

Given a polynomial in the form:

$a_nx^n +a_{n- 1}x^{n - 1} + … + a_1x^1 + a_0 = 0$

Where:

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- $a_0$ is the constant term $a_0\neq 0$

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For the case of the given polynomial:

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We can observe that:

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- Its leading coefficient is 2, with factors 1 and 2.

Then, by Rational Roots Test we get the possible rational roots of this polynomial:

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Step-by-step explanation:

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Expand

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