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).
Answer:
just graph it mate
Step-by-step explanation:
This is your perfect answer
Answer:
2 is not a solution
False
Step-by-step explanation:
8m - 6 < 10
Add 6 to each side
8m -6+6 < 10+6
8m < 16
Divide by 8
8m/8 <16/8
m < 2
m must be less than 2
2 is not a solution
