Question

Find the value of k of the following quadratic equation, so that they have two equal roots (1)x²-(k+4)x+2k+5=0 (2)2x²+8x-k³=0 (3) (k-3)x²+6x+9=0(4)(k-12)x²+2(k-12)x+2=0

Answer 1

Answer:

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