2x²-x+3

whats the answer

See below for answers.

Step-by-step explanation:

I assume you're looking for the factors? In that case, we list all of the factors of 3 and synthetically divide by each one.

Factors of 3: +1,-1,+3,-3

1 | 1 -1 3

      1  0

   1 0 3

This means x with a remainder of 3 so that's not it.

-1 | 1 -1 3

      -1  2

    1 -2 5

This means x-2 remainder 5 so that's not it

3 | 1 -1 3

      3 6

    1 2 9

This means x+2 remainder 9 so that's not it

-3 | 1 -1 3

       -3 12

     1 -4 15

This means x-4 remainder 15 so that's not it

Therefore, 2x^2-x+3 cannot be factored and must be solved with the quadratic formula. x must either be 1+sqrt(23)i/4 or 1-sqrt(23)i/4 when solved.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

answer: i guess 5 units?

step-by-step explanation: