What is the solution set of -(x + 4)(x - 5) s 0? Use the graph of f(x) = -(x + 4)(x - 5) shown to find the
solution set of - (x + 4)(x - 5) S 0.
2011
O (-4,5)
0 [4, 5]
O (-0,-4) U (5, …)
(--, -4] U [5,-)
10
-10
5
5
10
-10 +

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.