Simplify (√3 + √5) (√3 − √5)

Step-by-step explanation:

WE can see it is in the from of

=

So Now

=

= 3 - 5

= - 2

Hope it helps;)

-2

Step-by-step explanation:

In order to expand this, we need to use FOIL (first, outer, inner, last).

The first term for each expression is √3, so we multiply those together first:

(√3) * (√3) = 3

The outer term for the first expression is √3 and the outer term for the second equation is -√5, so multiply these next:

(√3) * (-√5) = -√15

The inner term for the first expression is √5 and the inner term for the second equation is √3, so multiply these:

(√5) * (√3) = √15

The last term for the first expression is √5 and the last term for the second equation is -√5, so finally, multiply these:

(√5) * (-√5) = -5

Now, add all these together:

3 + (-√15) + √15 + (-5) = 3 - 5 = -2

The answer is -2.

Hope this helps!

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,