Find the value of a, if one root of the equation 2x² + ax + 8 = 0 is 1.
WBBSE
Class X
Mathematics
Quadratic Equation With One Variable
02 Mark
2022
Substitute in 2x² + ax + 8 = 0:
2(1)² + a(1) + 8 = 0
2 + a + 8 = 0
a + 10 = 0
a = −10
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