F(x)=(x-4)^2-9 how to work equation

Parenthesis

Exponents

Multiplication (left to right; if division is first, do that first)

Division (left to right)

Addition (left to right; if subtraction is first, do that first

Subtraction (left to right)

So...

f(x) = (x-4)^2   -9

f(x)= x^2 - 4^2 - 9

f(x)= x^2 - 16 - 9

f(x) = x^2 - 7

Simplified! Now, this is a function. How this works is, you can put anything in for x. The information can then be used to create a table of values! :D to graph this, simply replace f(x) with y. Have fun!

what are the options? ?

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.