1.

Solve: x2 + 8x + 15 = 01. (x - 5) (x + 3)2. (x + 5) (x - 3)3. (x + 5) (x + 3)4. (x - 5) (x - 3)

Answer» Correct Answer - Option 3 : (x + 5) (x + 3)

Calculation:

x2 + 8x + 15 = 0

⇒ x2 + 5x + 3x + 15 = 0

⇒ x(x + 5) + 3(x + 5) = 0

⇒ (x + 5) (x + 3) = 0

∴ The required answer is (x + 5) (x + 3)



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