Answer:
<h2>2. (0, -4)</h2>
Step-by-step explanation:

Please: Use "^" to denote exponentiation: <span>2x^2 + 8x - 12 = 0
Reduce this by div. every term by 2: </span><span>x^2 + 4x - 6 = 0
Here a=1, b=4 and c = -6. Square half of b, obtaining (4/2)^2 = 4, and add, and then subtract, this 4 to x^2 + 4x - 6:
</span> x^2 + 4x +4 - 4 - 6 = 0. Rewrite the square as (x+2)^2, obtaining new equation
(x+2)^2 = 10. Take the sqrt of both sides: x+2 = plus or minus sqrt(10).
Finally, solve for x: x = -2 plus or minus sqrt(10).
I don’t know the answer to that one sorry
On what i need to see what you are talking bout so maybe i can answer it thank u please
Equilateral triangle means each angle equals 60 degrees.
60 = 7x - 3
63 = 7x
x = 9