2 years ago

What is one root of this equation? 2x^-4x+9=0

Mathematics

1 answer:

Nutka1998 [239]2 years ago

3 0

9514 1404 393

Answer:

1 +i√3.5

Step-by-step explanation:

In vertex form, the equation is ...

2(x² -2x +1) +7 = 0

2(x -1)² +7 = 0

Then the solutions are ...

(x -1)² = -7/2

x = 1 ±i√3.5

One solution is 1+i√3.5.

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3 years ago

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What is the solution of this equation? -1/2n2+18=0

SashulF [63]

Answer:

$n=-6\text{ or } n=6$

Step-by-step explanation:

So we have the equation:

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Subtract 18 from both sides. The left cancels:

$-\frac{1}{2}n^2=-18$

Multiply both sides by -2. The left cancels again:

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3 years ago

Solve the equation and show each step:<br> 25 - 4x = 15 - 3x + 10 - X

dimulka [17.4K]

Answer:

All real numbers.

Step-by-step explanation:

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25-4x+3x+x=25

25-x+x=25

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3 0

3 years ago

Simplify (xy)^-3/(x^-5y)^3

Nesterboy [21]

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3 years ago

A linear relation is given by the function f (x) = −7x +18 . If (x, 46) is on the function, the value of x is

prohojiy [21]

Answer:

x=-4

Step-by-step explanation:

46 = -7x + 18

subtract 18 from each side to get:

28 = -7x

divide each side by -7 to get:

x = -4

4 0

3 years ago