Answer:
He can purchase a maximum of 6 large candles.
Step-by-step explanation:
If he purchases 6 large candles and 14 small candles:
$5.00 x 6 = $30.00
$3.50 x 14 = $49.00
$49.00 + $30.00 = $79.00
You need to make the right side = 0
To do this you subtract 10 from both sides of the equation:-
x^2 + 6x + 9 - 10 = 10 - 10
x^2 + 6x - 1 = 0
Can you be more specific?
y=x-3 is the most plausible answer i can give you. Was that the whole question?