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2 years ago

Using the quadratic formula to solve 5x = 6x- - 3, what are the values of x?

Mathematics

2 answers:

goldfiish [28.3K]2 years ago

8 0

Answer:

x= -3

Step-by-step explanation:

Solve the rational equation by combining expressions and isolating the variable x.

kaheart [24]2 years ago

3 0

X = 3

Explanation:
You want to isolate the 3. So you move 6x to the other side of the equal sign which makes it a negative now. Then you add -6x to 5x and you’re left with -x=-3. You never want your leading coefficient and variable to be negative (in this case -1x at the beginning) so you will divide both sides by -1 and get -3/-1 which simplifies to 3

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mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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Based on the polynomial remainder theorem, what is the value of the function when x=−6 ?

Vaselesa [24]

ANSWER

$f( - 6) = 10$

EXPLANATION

The given function is
$f(x) = {x}^{4} + 8 {x}^{3} + 10 {x}^{2} - 7x + 40$

According to the remainder theorem,

$f( - 6) = R$
where R is the remainder when
$f(x)$

is divided by
$x + 6$

We therefore substitute the value of x and evaluate to obtain,

$f( - 6) = { (- 6)}^{4} + 8 {( - 6)}^{3} + 10 { (- 6)}^{2} - 7( - 6)+ 40$

$f( - 6) = 1296 + 8 ( - 216) + 10 (36) - 7( - 6)+ 40$

$f( - 6) = 1296 - 1728 + 360 + 42+ 40$

This will evaluate to,

$f( - 6) = 10$

Hence the value of the function when
$x = - 6$

is
$10$

According to the remainder theorem,
$10$
is the remainder when

$f(x) = {x}^{4} + 8 {x}^{3} + 10 {x}^{2} - 7x + 40$
is divided by
$x + 6$

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3 years ago