Answer:
Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
- algebraic identity:(a-b)²=(a+b)²-4ab
<h3>let's solve:</h3>
therefore
using the identity our answer is (a-b)²
let's prove it
- (a-b)²:a²-2ab+b²
- rewrite -2ab as 2ab-4ab:a²+b²+2ab-4ab
- use (a+b)²=a²+2ab+c²:(a+b)²-4ab
therefore
we have also proven that
Answer:
The answer is D
Step-by-step explanation:
Because the whole length is 29.1 so you would subtract the part you have which is 16.8 so 29.1-16.8=12.3
Answer:
1 is 60 2 is 60 and 3 is 119
Step-by-step explanation:
Second option:
-7x^2+4x+2
Answer:
y = 4x - 12
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)