If x2 - 7x = -12, What is the vale of x?1. -3 or -42. 3 or 43. 3 or -4

1.	If x2 - 7x = -12, What is the vale of x?1. -3 or -42. 3 or 43. 3 or -44. Cannot be determined
Answer» Correct Answer - Option 2 : 3 or 4 Given: If x²– 7x = -12, then find the value of x? Calculation: ⇒ x² – 7x + 12 = 0 ⇒ x² – 3x – 4x + 12 = 0 ⇒ x( x – 3 ) – 4( x – 3 ) = 0 ⇒ ( x – 3 )( x – 4 ) = 0 ∴ x = 3,4

If x2 - 7x = -12, What is the vale of x?1. -3 or -42. 3 or 43. 3 or -44. Cannot be determined

Answer» Correct Answer - Option 2 : 3 or 4

Given:

If x²– 7x = -12, then find the value of x?

Calculation:

⇒ x² – 7x + 12 = 0

⇒ x² – 3x – 4x + 12 = 0

⇒ x( x – 3 ) – 4( x – 3 ) = 0

⇒ ( x – 3 )( x – 4 ) = 0

∴ x = 3,4

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If x2 - 7x = -12, What is the vale of x?1. -3 or -42. 3 or 43. 3 or -44. Cannot be determined

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