There are many pairs of integers (whole numbers) that equal -6.
1 + 5
2 + 4
3 + 3
-3 + 9
You can choose from any of those pairs.
Answer:
lcm (14,15)=210 and lcm (98,8)=392
Step-by-step explanation:
Answer:
x = 25°
Step-by-step explanation:
Here given a straight line whose angle equals to 180°
2x + 10 + 4x + 20 = 180
group terms like this ↓
2x + 4x + 10 + 20 = 180
simplify all variables ↓
6x + 30 = 180
changing sides changes addition to subtraction ↓
6x = 180 - 30
6x = 150
changing sides changes multiplication to division ↓
x = 150/6
final answer ↓
x = 25°
We can either use the quadratic formula or completing the square.
I'll use the method if completing the square.
x^2 + 10x + 12 = 36
Move the constant over to the other side.
x^2 + 10x = 24
Add (b/2)^2 to both sides.
x^2 + 10x + (10/2)^2 = 24 + (10/2)^2
x^2 + 10x + 5^2 = 24 + 5^2
x^2 + 10x + 25 = 24 + 25
Factor the left side and add the terms on the right side
(x+5)(x+5) = 49
(x+5)^2 = 49
Find the square root of both sides.
x + 5 = +/- 7
Move 5 over to the other side by subtracting it.
x = -5 + -7 = -12
OR
x = -5 - (-7) = 2
So x = -12 or x = 2.
