Question

x^2 - 4x + 4 has equal roots or not
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Answer 1

Answer:

If b² - 4ac = 0, then it has equal roots.

So, (-4)² - 4(1)(4)

16 - 16 = 0

So, it has equal roots.

Answer 2

Answer:

YEAH.... it has equal roots

Step-by-step explanation:

x^2-2x-2x+4

x(X-2)-2(X-2)

(X-2)^2