Question

Choose the correct answer from the given four options in the following questions
1. Which of the following is a quadratic equation?
(A) x2 + 2x + 1 = (4 - x)² + 3
(B) -2x = (5 - x)
--> (28
5
3
(C) (k + 1)x2 + x = 7, where k = -1
2
(D) x - x = (x - 1)3​

Answer 1

Answer:

C. (k+1)x2+ x = 7, where k= -1

Answer 2

Answer:

A & C

Step-by-step explanation:

For a equation to be quadratic the maximum power of variable should be 2 which is possible in option A &C only.

**The option B & D you have put seems to have some typos so assuming they are what they are am answering the same. if you can correct the typos I can answer better.