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Question
(x + 5) (x − 4) = ______.
Options
x2 + x − 20
x2 − x − 20
x2 + x + 20
x2 + 9x − 20
MCQ
Fill in the Blanks
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Solution
(x + 5) (x − 4) = x2 + x − 20.
Explanation:
x(x − 4) + 5(x − 4)
= x2 − 4x + 5x − 20
= x2 + x − 20
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