Question

Activity 7
Date :
One root of the quadratic equation kx² - 10x +3=0
1
is. Complete the following activity, to find the
3
value of k.
1
is a root of the given quadratic equation.
3
1
Substitute x in the given quadratic equation.
3
k
(
- 10
+3=0.
3
3.
k
+3=0
ik-
= 0
k=​

Answer 1

since one of the zero of the polynomial is 1/3

substitute 1/3 in place of "x" in the polynomial .

so,,,

kx2 -10 x +3 =0

k (1/3)^2 -10(1/3) +3 =0

k/9 -10/3 +3 =0

k/9 -30/9 + 27/9 =0

k - 30 +27 / 9 =0

k - 30 +27 =0

k -3 =O

=> k =3

Step-by-step explanation:

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