Answer:
Step-by-step explanation: That is a 90 degree angle. Using L is an example of a 90 degree angle, or a right angle, which is its common name.
Answer:
x^2 +2x +1
Step-by-step explanation:
(x+1)^2
=(x+1)(x+1)
= x×x+x×1+1×x+1×1
=x^2+x+x+1
=x^2+2x+1
I cannot see the file attached. Can you type it in.
Answer:
<h2>The answer is option A</h2>
Step-by-step explanation:
( 5x⁴ + 3)²
( 5x⁴ + 3)(5x⁴ + 3)
<u>Expand</u><u> </u><u>using</u><u> </u><u>FOIL</u>
That's
(5x⁴)(5x⁴) + 5x⁴(3) + 3(5x⁴) + 3(3)
We have
<h3>

</h3>
<u>Add and simplify like terms</u>
We have the final answer as
<h2>

</h2>
Hope this helps you