Question

Which of the following is a quadratic equation?
(a) xº + 2x + 1 = (4 – x)2 +3 (b) –2x² = (5 – x)(2x -)
(c) (k+1)x² + 2x = 7, where k #1
(d) x - x = (x - 1)?​

Answer 1

Answer:

c is the right answer

Step-by-step explanation:

in bpart -2x2 is cancelled