Question

6. Which of the following is a quadratic equation? ?
(1)xx-4 - 12
(2xx + 4) = x2+2x+1
13xx-4-xx-2) = 0
(4) xx+ 4) = x(x+ 5) -x​

Answer 1

Answer:

$2)x ^{2} + 2x + 1$

Step-by-step explanation:

Equation with degree of 2 is known as quadratic equation.

Answer 2

option 2 because the equation with degree 2 is quadratic equation

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