Math, asked by ayejoshua406, 8 months ago

If 3 is a root of the equation x^2-kx+42, find the value of k

Answers

Answered by tosushilpandey

5

Answer:

k = 17

Step-by-step explanation:

Lets substitute for 3

(3)^2 - (3)k + 42 = 0

9 - 3k + 42 = 0

9 - 3k = -42

-3k = -51

k = -51/-3

k = 17

Answered by adityakataria1812

0

Look at the previous quest it’s absolutely correct

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