Answer:
Step-by-step explanation:
First one (2x+1)(x-3) if you notice. that is the factored form of
no the second fraction already has the (2x+1) , you would multiply the second fraction by (x-3).... dont forget you have to do both numerator and denominator ....
If you would like to solve 7x + 9 = 6x - 5 for x, you can do this using the following steps:
<span>7x + 9 = 6x - 5
</span>7x - 6x = -5 - 9
x = - 14
The correct result would be x = - 14.
Answer:
z=2
Step-by-step explanation:
z^2 - 4z+4 =0
Factor recognizing
a^2 - 2ab - b^2 = (a-b)^2
(z-2)^2 =0
Using the zero product property
z-2 = 0
z=2
The formula of a perimeter of rectangle:
P = 2(w + l)
We have l = 12 in and P = 56 in.
Substitute:
2(w + 12) = 56 <em>use distributive property</em>
(2)(w) + (2)(12) = 56
2w + 24 = 56 <em>subtract 24 from both sides</em>
2w = 32 <em>divide both sides by 2</em>
w = 16
<h3>Answer: D. 16 in.</h3>