Explanation:
We have,
To find, the value of h = ?
∴
⇒ + (0) - 12 + (0) + (0)h = 0
⇒ + 0 - 12 + 0 + 0 = 0
⇒ - 12 = 0
Taking 6 as common, we get
= 0
⇒6 = 0 or, - 2 = 0
⇒ 6 = 0 ⇒ h = 0
⇒ = 2
⇒ h = ±
Hence, the value of h = 0, ±
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