What + what * what + what = 49278

Step-by-step explanation:

x^2 +2x -49278

(x-220.9887385)(x+222.9887385)

x= 220.988 or -222.988

The number is

Step-by-step explanation:

Let the number be x

We have

x + x × x + x = 49278

2x × 2x = 49278

4x² = 49278

Divide both sides by 4

x² = 12319.5

Find the square root of both sides

x = √12319.5

Hope this helps you

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.