Question

Which of the following is an example of a quadratic equation

Answer 1

Answer:

x

2

=36x, start superscript, 2, end superscript, equals, 36

(x-2)^2=49(x−2)

2

=49left parenthesis, x, minus, 2, right parenthesis, start superscript, 2, end superscript, equals, 49 [Why is this a quadratic equation?]

x^2

x, start superscript, 2, end superscript(x-2)^2

left parenthesis, x, minus, 2, right parenthesis, start superscript, 2, end superscriptxx

\begin{aligned}(x-2)^2&=49\\\\ x^2-4x+4&=49\end{aligned}

 

x^2

x, start superscript, 2, end superscript

2x^2+3=1312x

2

+3=131

Step-by-step explanation: