Home » If (x^2 +15x + 50 = ax^2 + bx + c = 0). Which of…

If (x^2 +15x + 50 = ax^2 + bx + c = 0). Which of…

If (x^2 +15x + 50 = ax^2 + bx + c = 0). Which of the following statement is not true?

  • A.
    x = -5
  • B.
    x = 10
  • C.
    x + 10 = 0
  • D.
    bc = 750
Correct Answer: Option B
Explanation

(x^2 + 15x + 50 = 0)

(x^2 + 5x + 10x + 50 = 0)

(x(x + 5) + 10(x + 5) = 0)

((x + 5)(x + 10) = 0)

x + 5 = 0 or x + 10 = 0.

Comparing (x^2 + 15x + 50) with (ax^2 + bx + c), b = 15 and c = 50.

(therefore) bc = 750.

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