How to find roots of X2-4x-3root2 by quadratic formula

Step-by-step explanation:

I am not sure if this is the equation you ask about?

x²-4x-3√2 =0

... or is it ?

x²-4x-3 =0

9514 1404 393

  fill in the coefficients and evaluate the formula

  x ≈ 2±√(4+3√2) ≈ {-0.871, 4.871}

Step-by-step explanation:

The quadratic formula for the solution of ...

  ax² +bx +c = 0

is ...

The use of this formula requires that you know the values of a, b, c. You can find these by comparing the given quadratic with the standard form, above.

When you are asked for "roots" or "zeros", you are being asked for the values of x that make the polynomial have a value of zero:

  x² -4x -3√2 = 0

In this form, you can see the coefficients are ...

  a = 1, b = -4, c = -3√2

Using these values in the quadratic formula, you have ...

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.