1 point
Which expression is a factor of \( x^{2}+3 x-40 ? \)
A. \( (x-4) \)
B. \( (x-5) \)
C. \( (x-8) \)
D. \( (x-10) \)
Answer
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Answer
Factor the quadratic: (x + 8)(x - 5)
Steps
Step 1 ：Find the factors of -40 such that their sum is 3.
Step 2 ：The factors are 8 and -5.
Step 3 ：Factor the quadratic: (x + 8)(x - 5)
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