<u>Answer:</u>
○ 
<u>Explanation:</u>
<h3>What is a quadratic equation?</h3>
A quadratic equation is an algebraic equation where the highest power of 
is 2. The general form of a quadratic equation is as follows:
,
where <em>a</em>, <em>b</em>, and <em>c</em> represent known constants, and is the unknown.
In this question, if you take a look at the second option, you will see that it is possible to rearrange the equation to make it look the general form:
⇒ 
Therefore, this equation is quadratic.
The other three options are not quadratic equations because none of them have an 
term in them.
Answer:
B
Step-by-step explanation:
let y = 5x - 3
rearrange making x the subject
add 3 to both sides
5x = y + 3 ( divide both sides by 5 )
x = 
change y back into terms of x, hence
(x) = 
→ B
Answer:
A polynomial that has a degree of 2 is called a Quadratic.
Step-by-step explanation:
We have
<span>3/5=(a+5)/25
3/5=(5/5)*(3/5)=15/25
therefore
15/25=</span>(a+5)/25<span>
15=a+5------------------------ > a=10
the answer is the option </span>a = 10
