Question

find roots. 4k^2-30k-13=0​

Answer 1

Answer:

Refer the pinned material..

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Answer 2

Step-by-step explanation:

p(k) = 4k^2 - 30k - 13 = 0

Applying quadratic formula

D = b^2 - 4ac

D = (-30) x (-30) - 4 x 4 x -13

D = 900 - 16 x -13

D = 900 - 208

D = 692

so,

either

k = -b/8 + √692/8

k = 30/8 + 2√173/8

k = 15/4 + √173/4

or

k = 15/4 - √173/4