The answer is 15 km I think.
-1/5, -4 I’m pretty sure and decimal form is -0.2, -4
Isolate for x
First expand the bracket to
12x^2 - 15x = 12x - 5
Move everything to one side
12x^2 - 27x + 5
Use quadratic formula and sub in values
X = 2.046989
X = 0.203610
Answer:
Step-by-step explanation:
x² - 6x + 7 = 0
x² - 6x = -7
Find 6÷ 2 = 3. Find 3² = 9. Now add 9 to both side
x² - 6x + 9 = -7 +9
x² - 2*x*3 + 3² = 2
(x - 3)² = 2
Solution
x - 3 = √2
x - 3 = ± 1.41
x = 1.41 + 3 ; x = -1.41 + 3
x = 4.41 ; x = 1.59