3 years ago

Using synthetic division, find (2x4 - 3x3 - 20x - 21) = (x - 3).

Mathematics

1 answer:

andreev551 [17]3 years ago

4 0

Answer:

x= -9/11

or alternative form:

x= 0.81

Step-by-step explanation:

2x4-3x3-20x-21=x-3

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Select the correct answer.

givi [52]

Answer:

Step-by-step explanation:

The cube of twice a number =

${2m}^{3}$

Decreased by 11 =

$- 11$

Hence, the cube of twice a number decreased by 11 =

${2m}^{3} - 11$

7 0

3 years ago

Simplify the square root of 320

Pavlova-9 [17]

17.89, is this an option?

5 0

3 years ago

What is the solution set of the equation 6/m +2= m+3/m−1 ?

laiz [17]

Answer:

m = (-3, 2) x = (-1)

Step-by-step explanation:

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3 years ago

For what value of x must ABCD be a parallelogram? asap please!!

pochemuha

Parallelogram so
CD = AB
18x - 5 = 15x + 4
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x = 3

answer
x = 3

3 0

3 years ago

Read 2 more answers

Determine the value of x to the nearest thousandth in the equation 8(2)^x+3=48

solong [7]

You probably mean either

$8\cdot2^x + 3 = 48$

$8\cdot2^{x+3} = 48$

Write 8 = 2³, so that in the first interpretation,

$8\cdot2^x = 2^3 \cdot 2^x = 2^{x + 3}$

and in the second,

$8\cdot2^{x+3} = 2^3 \cdot 2^{x+3} = 2^{x + 6}$

Then in the first interpretation, we have

$2^{x + 3} + 3 = 48 \implies 2^{x + 3} = 45 \implies x + 3 = \log_2(45) \implies x = \log_2(45) - 3 \approx \boxed{2.492}$

Otherwise, the second interpretation gives

$2^{x + 6} = 48 \implies x + 6 = \log_2(48) \implies x = \log_2(48) - 6 \approx -0.415$

8 0

3 years ago