If the area of square 1 is 250 units squared, and the area of square 3 is 120 units squared, what is the area if square 2? explain your reasoning.

The area of square 2 is 130 units square

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The area of a square is

where

b is the length side of the square

Let

b1 ----> the length side of square 1

b2 ----> the length side of square 2

b3 ----> the length side of square 3

Applying the Pythagoras Theorem

-----> equation A

we have

Remember that

so

substitute in the equation A and solve for b2^2

therefore

The area of square 2 is 130 units square

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

my guess would be b and d, but i didn’t actually get out the pen and paper. lol