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Find the value of m, if 4 is a factor of y2 - my + 40= 0
1. 12
2. 13
3. 14
4. 17

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Correct Answer - Option 3 : 14

Given

Factor of y2 - my + 40 is 4

Calculation

y2 - my + 40 = 0

⇒ (4)- m(4) + 40 = 0

⇒16 - 4m + 40 = 0

⇒- 4m + 56 = 0

⇒ - 4m = - 56

⇒ m = 14

∴ Value of m is 14.

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