Skyline College Equation Worksheet

sel2.
2.
1
4
2
4
A student tries to solve the equation
X + 2
1
1
=
=
1
X
x + 2
+
ni
=
let
X + 2 х X + 2
4
х 2 X+2 1 х
X + 2 X X X + 2 x+ 2 x
4x – 2(x + 2) х
x(x + 2) x(x + 2)
4x – 2x + 4 х
x(x + 2) x(x + 2)
2x + 4 х
x(x + 2) x(x + 2)
2x – 4 = x
x=4
pte
Describe a more efficient way to solve the equation. Choose the correct answer below.
O A. The given solution is the easiest way of solving the equation.
O B. Make all of the denominators equal to x + 2. Then solve the equation.
O C. Find the LCD of all fractions. Multiply both sides of the equation by the LCD to obtain a simpler equation. Then solve the simpler equation.
O D. Find the GCF of all denominators. Multiply both sides of the equation by the GCF to obtain a simpler equation. Then solve the simpler equation.
Click to select your answer.
MAY
16
25
©
19
átvin A
–
–
D
a
@@
ee
@
整個