3 years ago

Evaluate f(x) = 2x4 - 4x3-11x2+3x-6 for x=-2 f (-2) =?

Mathematics

2 answers:

ollegr [7]3 years ago

8 0

Answer:

f(- 2) = 8

Step-by-step explanation:

Evaluating for x = - 2

f(- 2) = 2 $(-2)^{4}$ - 4(- 2)³ - 11(- 2)² + 3(- 2) - 6

= (2 × 16) + (- 4 × - 8) + (- 11 × 4) - 6 - 6

= 32 + 32 - 44 - 6 - 6 = 8

marusya05 [52]3 years ago

5 0

Answer:

Step-by-step explanation:

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3 years ago

Solve for x, given the equation Square root of x plus 9 − 4 = 1.

Daniel [21]

ANSWER

The value of x is
$16.$

EXPLANATION

We want to solve the equation,

$\sqrt{x + 9} - 4 = 1$

The first step is to add 4 to both sides of the equation to obtain,

$\sqrt{x + 9} = 1 + 4$

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3 years ago

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3 years ago

If TU = x + 5, UV = 20, and TV = 10x − 11, what is TV?

Aleksandr-060686 [28]

Answer:

TV = 29

Step-by-step explanation:

TU + UV = TV

x + 5 + 20 = 10x - 11

5 + 20 + 11 = 10x - x

36 = 9x

36/9 = x

x = 4

TV = 10x − 11 = 10 * 4 - 11 = 40 - 11 = 29

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3 years ago