Asked by Math

Find the value of K so that x^2-5x+k=0 has one root equal to 4.
Answered by Math
No idea
Answered by Steve
Recall that for

x^2+bx+c

the product of the roots is c.

If the other root is m, then

4m = k
4+m = 5

Looks like m=1, so k=4

x^2-5x+4 = (x-4)(x-1)
Answered by Adeline
oink
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