First you need to distribute any numbers outside of the parenthesis through the parenthesis (that was a horrible explanation I'm sorry...)
2(2x+5)=4(x+3)
4x+10=4x+3
then you try to get x on one side of the equation so you can solve for it.
4x-4x=0
10≠3 , therefore there are no solutions to the equation
Answer:
A. f(-3) < g(-3)
Step-by-step explanation:
Evaluating f(-3), you get ...
f(-3) = -(-3)^2 +4 = -9 +4 = -5
Looking up g(-3) in the table, you get ...
g(-3) = 1
Comparing these values, you find
f(-3) vs. g(-3) . . . is . . . -5 vs. 1
The true comparison is ...
-5 < 1
So, f(-3) < g(-3).
Answer:
the answer is 800
Step-by-step explanation:
you have 4,000 lets make it smaller.
40 divied by 5
=8 just add the 2 zerores to get 800
Answer:
Option A. the solution a = -4 is an extraneous solution.
Step-by-step explanation:
Lets solve the radical equation to get the potential solutions.
√(a + 5) = (a + 3)
By squaring terms on both the sides
[√(a + 5)]² = (a +3)²
(a + 5) = (a + 3)²
(a + 5) = a² + 6a + 9
0 = a² + 6a + 9 - a - 5
a² + 5a + 4 = 0
a² + 4a + a + 4 + 0
a(a + 4) + 1(a + 4) = 0
(a + 1)(a + 4) = 0
a = -1 or a = -4
Now if we put the value of a = - 4 in the radical equation then we get
√(-4 + 5) = (-4 + 3)
√1 = -1
1 = -1 ( Therefore a = -4 is not the solution)
Now by putting a = -1
√(-1 +5) = -1 + 3
√4 = 2
2 = 2 which shows the equal relation.
Therefore a = -4 is an extraneous solution.
Option A. is the correct option.