What value of g makes the equation true? open paren x plus 7 close paren times open paren x minus 4 close paren is equal to x squared plus g x minus 28
Answer
A
11
B
negative 3
C
3
D
negative 11
Explanation
Expand the left side: (x + 7)(x − 4) = x² + 3x − 28. Comparing this with x² + gx − 28 shows that g = 3, so the correct choice is 3.
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