Question

For what value of k does k - 12 into x square + 2 k - 12 into x + 2 is equal to zero have equal roots

Answer 1

((k-12)x^2(2k-12)x+2
equal roots so b2-4ac =0
(2k-12)^2-4(k-12)(2) =0
4k^2+144-48k-8k+48 =0
4k^2-56k+192=0
k^2-14k+48=0
(k-8)(k-6)=0
value of k should be 8 or 6
please add this to brainliest

Answer 2

split the equation that you have provided