Question

What are the excluded values?
7b^3/b^2-7b+10

Answer 1

the answer is option B, b = 2 and 5

Answer 2

The expression
7b^3/(b^2 - 7b + 10)
will become undefined if the denominator is equal to 0. To find the excluded values, we must then equate the denominator to 0.
So,
b^2 - 7b + 10 = 0

Solving the quadratic equation will give the roots:
b = 5 and 2

Therefore, the excluded values are b = 5 and 2.