When 7 times a number is added to the square of the number, the sum is 3. what is the number?

Step-by-step explanation:

1. Set up the equation

  Let x = the number. Then

      7x = seven times the number and

       x² = the square of the number

x² + 7x = seven times the number added to the square of the number

x² + 7x = 3

Subtract 3 from each side

x² + 7x - 3 = 0

2. Solve the quadratic equation

Use the quadratic formula: a = 1; b = 7; c = -3.

The graph of your quadratic crosses the x-axis at (-7.405,0) and (0.405,0).

b

step-by-step explanation:

calculate the scale factor as the ratio of corresponding sides, image to original, that is

scale factor = = = = 1

it's both, now can you answer my most recent question?