Answer on Question #62894 – Math – Algebra
Question
Simplify and state the excluded values
3𝑥 2 −33𝑥+72
𝑥−8
Solution
3x 2  33 x  72
x 8
2
3x  33x  72  0
y
D  33 2  72  12  225  D  15
33  15
3
6
33  15
x2 
8
6
3x 2  33 x  72 3( x  3)( x  8)
y

 3( x  3)  3 x  9; x  8.
x 8
x 8
x1 
The excluded value is 8.
Answer: 3x  9 ; 8 .
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