Which of the given expressions results in 0 when evaluated at x = 5? A. 5x(x − 7) B. (x + 7)(x − 2) C. (x + 5)(x − 8) D. (x − 8)
2 answers:
Answer:
Option D
Step-by-step explanation:
The expressions are given in factor form.
Whenever any one factor is 0, expression is 0
Since x=5 we have x-5 =0
So wherever x-5 is a factor, the expressions has to be 0
Out of 4 expressions given we have
Option D is only having x-5 as factor
Hence option D expression
when x=5
Other expressions cannot be exactly 0 since x-5 is not a factor for any other of them
So only option D is right.
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