<h3>Total snow fall for three days is 8.75 inches</h3>
<em><u>Solution:</u></em>
Given that,
Snow fell over the past three days

<em><u>What was the total snowfall for the three days?</u></em>
Total snowfall = first day + second day + third day

Thus total snow fall for three days is 8.75 inches
2x^2 + 8x - 12 = 0..divide by 2
x^2 + 4x - 6 = 0
x^2 + 4x = 6...add 4 to both sides of the equation
x^2 + 4x + 4 = 6 + 4
(x + 2)^2 = 10....<== ur constant is 10
x + 2 = (+-)sqrt 10
x = -2 (+ - ) sqrt 10
x = -2 + sqrt 10
x = -2 - sqrt 10
The change in temperature for 1 hour would be -5. hope this helps.