Question

If the quadratic equations
ax2 + 2x + c = 0, ax2 + 2cx + b = 0 hav
a common root. Then​

Answer 1

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Answer 2

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ax2 + 2cx + b = 0 and ax2 + 2bx + c = 0

Subtracting 2(c–b) x = (c–b)

x = 1/2 is a common root

Put in equation a/4 + 2c/2 + b = 0

⇒ a + 4c + 4b = 0