Mathematics
Solve :
2x2 + ax - a2 = 0
Quadratic Equations
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Answer
Given,
⇒ 2x2 + ax - a2 = 0
⇒ 2x2 + 2ax - ax - a2 = 0
⇒ 2x(x + a) - a(x + a) = 0
⇒ (2x - a)(x + a) = 0
⇒ (2x - a) = 0 or (x + a) = 0
⇒ x = or x = -a
Hence, x = or -a.
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