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3 years ago

In factoring by grouping, what would you have for step 3 for the following?

Mathematics

2 answers:

MA_775_DIABLO [31]3 years ago

8 0

Answer:

Factor out the x+5

(x+5)(x^2+4)

Step-by-step explanation:

Step 1: x^3 +5x^2 +4x+20

Step 2: x^2 (x+5)+4(x+5)

Step 3: Factor out the x+5

(x+5)(x^2+4)

solong [7]3 years ago

6 0

Answer:

Step 3: (x^2 + 4)(x + 5)

Step-by-step explanation:

Step 1: x^3 +5x^2 + 4x+20

Step 2: x^2 (x+5) + 4(x+5)

Step 3: (x^2 + 4)(x + 5)

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g and Consider the following. f(x) = 4x2 + 5x − 18 (a) Find the instantaneous rate of change of the function at the value x = −4

Oduvanchick [21]

Answer:

a) $\frac{dy}{dx} = -27$ , b) $m = -27$

Step-by-step explanation:

a) The instantaneous rate of change is:

$\frac{dy}{dx} = 8\cdot x + 5$

$\frac{dy}{dx} = 8\cdot (-4)+5$

$\frac{dy}{dx} = -27$

b) The slope of the tangent line is equal to the instantaneous rate of change found previously.

$m = -27$

5 0

3 years ago

23x23<br> Show work please

Arte-miy333 [17]

The awnser would be 23
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   529

8 0

3 years ago

Read 2 more answers

Can someone please help me on this

Naddik [55]

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7 0

3 years ago

Penny and Kenny have the same number of football cards.

Pachacha [2.7K]

Hello,
Penny==>a*10 (a is an integer)
Kenny==>b*18 (b is an integer)

a*10=b*18==>a=9*b/5 ==>b=5+n*5
a=9*(5+5*n)/5=9*(1+n)=9+9n
If n=0 then a=9 and b=5 :Number od cards: 9*10=10, 5*18=90
if n=1 then a=19 and b=10: Number of cards: 19*10=190>100 to exclude.

So number of cards=90

7 0

3 years ago

The 100th term of 9, 93, 95, 97, ...

12345 [234]

Answer:

207

Step-by-step explanation:

5 0

3 years ago