X^2+2x+1 is a perfect square trinomial
true of false?

True.

Step-by-step explanation:

It is because it is in the form and this equals .

Why it is in that form:  well comparing  , we have . Testing, plug in those values:

.

This has the squared form of .

Test if you like:

Use foil to expand:

First: x(x)=x^2

Outer: x(1)=x

Inner: 1(x)=x

Last: 1(1)=1

---------------Add together

It does indeed equal.

answer: the first graph

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this