Lets factor first to see if we can make the problem simple
2(4x^2-25)
now we see that in parenthesis we have 2 square numbers
4x^2=(2x)^2
25=(5)^2
our expression is now
2(2x+5)(2x-5)
5x + 6 = 1
Subtract 6 from both sides.
5x = -5
Divide from both sides.
x = -1 (ANSWER)
hope this helps!!
Step-by-step explanation:
Graph it and find the rise over run. which then gives you your slope
$530.40/4= $132.60
$132.60 x 3=$397.80
Or
$530.40 x .75= $397.80
He used an incorrect time ratio converting hours to minutes.
