What is the solution set to the inequality 5(x - 2)(x + 4) > 0? {x\ x>-4 and x <2}
{x| X <-4 or x>2}
{x| X <-2 or x>4}
{xl x>-2 or x <4}

because they could drop even lower..

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this