Answer:
4a²-9
Step-by-step explanation:
(2a+3)(2a-3) = (2a)²-3² {<em>Difference</em><em> </em><em>of</em><em> </em><em>two</em><em> </em><em>squares</em><em>}</em>
= 4a²-9
Answer:
all real number greater than or equal to -3.
In any function y = f(x) , set of all possible values of x define the domain of f(x), in the graph The curve in terms of x-axis(in 1st & 3rd quadrant) goes from -4 to -2(doesnt include -2).
So domain = [-4, -2)
Similarly, in 2nd and 4th quadrant, for x-axis
It goes from 2 to 5 (doesnt include 2 & 5)
So domain = (2, 5)
Hence,
Domain of the f(x) is [-4, -2) U (2, 5).
Range tells the possible values of y, for this function it goes from -5 to +3(doesnt include 3).
Range is [-5, 3)
