M=16
16-9=7
hope this helped:)
Do recall that squaring and the *radical sign* cancel each other out... like so:(
)
= a
When you put it that way, it isn't enough :P
(
)
= a
(
)
=?
so you start with
(
)
=
8x+1=25 <-- subtract 1 to both sides
8x=24 <- divide 8 to both sides
x= 3
To find out if it's an extraneous solution ask yourself: It mustn't result in a radical that I like to call... 'illegal'. Plug it into the radicand 8x+1 and make sure you get something that is not a negative number.... so, DO you get a negative number when you plug in x = 3 into the radicand?
(extraneous solution is a invalid solution)
x=3 not extraneous
X is -30
(-2/5) times -30 is 12
Answer:
Associative Property
Step-by-step explanation:
In your equation, you're adding three digits together.
When you're adding or multiplying, the order in which you it doesn't matter:
ex. 1 + 3 + 5 = 3 + 5 + 1 <- This is the commutative property (not associative)
Adding parentheses indicated the order in which you do an operation, but when adding, order doesn't matter, so you're able to move around the parentheses. When you move around the parentheses, that's an example of the associative property.
It's important to not confuse the associative property with the commutative property.
The associative property is moving around parentheses
While the commutative property is moving around the numbers.
Answer:
Step-by-step explanation:
-4+x ≤ 2(x-5)
-4+x≤2x-10
-2x+x≤-10+4
-x≤-6
x≥6