How many unit tiles need to be added to the expression x2 + 4x + 3 in order to form a perfect square trinomial?

We need to add 1.

Step-by-step explanation:

The given expression is :

We have to add 1 to the expression.

This makes it :

And its factor will be

or we can write as :

Therefore, we should add 1 unit tiles to the given expression in order to form a perfect square trinomial.

y=mx+b

step-by-step explanation:

m slope, b y-intercept

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: