Answer:
13-6x
Step-by-step explanation:
10 - 3x ×2+(7-4)
10 - 6x+(7-4)
10-6x+3
=13-6x
Answer: 21.5in squared
Step-by-step explanation:
1x 4y is the correct answer
Step-by-step explanation:
Answer:
The number that goes in place of the question mark is 2.
Step-by-step explanation:
Let's solve it!
3x² + 12x - 24 = 0
First we can factor 3 out of each term:
x² + 4x - 8 = 0
Now we'll add 12 to both sides to complete the square:
x² + 4x + 4 = 12
And finish it off:
(x + 2)² = 12
So the answer to the question is 2
Bonus:
We can also now solve this for x:
(x + 2)² = 12
x = √12 - 2
x = 2√3 - 2
x ≈ 2 × ±1.732 - 2
x ≈ 1.464, -5.464