Solve for x in the equation x2 - 14x+31 = 63-
0
x= -16 or x = 2
x=-7+3.17
x=-2 or x = 16
x= 7+3/7
0
0

Solve for x in the equation x^2 - 14x + 31 = 63?

The value of x for given equation is x = 16 or x = -2

Given that equation is

To find: value of "x"

Subtract 63 from both sides we have:

Now we will factor our given quadratic equation by splitting the middle term.

-14x can be splitted as -16x + 2x

Take "x" as common from first two terms and "2" as common from last two terms

Take (x-16) common we have:

Equating the terms to 0,

x - 16 = 0 or x + 2 = 0

x = 16 or x = -2

Therefore, the value of x are: 16 and -2

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.