Which of the following is NOT a quadratic function?
Select one:
A. (x + 5)(2x + 5)
Br? - 2 19
20_21_62
C.
D. 2(x² + 4x)

step-by-step explanation:

answer: i think its b

using the formula for pythagorean theorem (a2+b2=c2)(the twos are exponents), and knowing that you have b squared and c squared, just reverse it. 26 squared minus 10 squared equals c squared. 26 squared is 676 and 10 squared is 100. you get 576, then use your square roots to undo the squared numbers to get 24.