Answer: n=0 or n=2
Step-by-step explanation: Step 1: Subtract 2n from both sides.
n²−2n=2n−2n
n²−2n=0
Step 2: Factor left side of equation.
n(n−2)=0
Step 3: Set factors equal to 0.
n=0 or n−2=0
n=0 or n=2
It’s D I hope I’m not late
Answer:
Option D In step 4 Keith should have subtracted 5 from each side
Step-by-step explanation:
step 1
we have
f(x)=7x+5 -----> given
step 1 is correct
step 2
Change f(x) to y
y=7x+5
so
step 2 is correct
step 3
Exchange x for y and y for x
x=7y+5
so
step 3 is correct
step 4
Subtract 5 each side
x-5=7y+5-5
x-5=7y
<u><em>step 4 is not correct</em></u>
step 5
Divide by 7 each side
(x-5)/7=y
step 6
Change y to g(x)
(x-5)/7=g(x)
step 7
switch sides of the equation
g(x)=(x-5)/7
therefore
In step 4 Keith should have subtracted 5 from each side
