alleryA rectangular field is 5 m longer than it is wide, and its area is 50 m². If the width is x metres, which equation describes x?
Ax² + 50x − 5 = 0
Bx² + 5x − 50 = 0
Cx² − 5x + 50 = 0
Dx² − 5x − 50 = 0
Answer & Solution
Correct answer: B. x² + 5x − 50 = 0
Width = x, length = x + 5. Area: x(x + 5) = 50 ⇒ x² + 5x − 50 = 0.
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