Answer:
The star * can be replaced by <em>2bc</em>
Step-by-step explanation:
<u>Square Of A Binomial
</u>
The expression 
can be expanded as 
. Equivalently, if we have the expansion we can reduce to the power of 2. If we know a term is the square of a monomial, we can find the original term by taking the square root.
The given expression is
It's supposed to be the square of a binomial, so we need to test if both of the given terms are perfect squares
Once we are sure we have both square terms, we can complete the expression with the remaining part of the expansion, i.e. twice the first by the second term. In other words
The full expression will be
which can be reduced to
Answer:
, for all 
Step-by-step explanation:
Vectors are parallel to each other if:
The value of 
is:
Then, the following relationship is found:
, for all
Answer:
2/5 ; 2 to 5; 2:5
5/2 ; 2 to 5; 2:5
5/2 ; 5 to 2; 5:2
2/5 ; 5 to 2; 5:2
Step-by-step explanation:
Answer: 2(4x-3) =8x-6
-3(3x)+5x=-4x
Step-by-step explanation:
Hope this helps
Answer:
Systems of equations are used to solve applications when there is more than one unknown and there is enough information to set up equations in those unknowns.
