Question

What is the value of k, if one root of the quadratic equation is x²+kx+10=0 is 2 ​

Answer 1

Answer:

If 2 is the root that means;

2^2+k(2)+10=0

4+2k=-10

2k=-10-4

2k=-14

k=-7

HOPE THAT HELPS...

Answer 2

answer:

This is from quadratic equation we need to know what is quadratic equation .That is explained below.

the quadratic equation is

ax²+bx+c =0

this is quadratic equation.

its root are x+y = -b/a

its root are xy = c/a.

Step-by-step explanation:

given:

x²+kx+10=0 and one of the root is 2 then

we can find the value of k.

solving this equation

x²+kx+10=0

substitution of 2 in this equation

we get

(2)²+ k2+ 10 =0

4 + k2 +10 =0

14+k2=0

k2 = -14

k = -14/2

k = -7

this is the value of k

k = -7

this is the value of k this is way in which we can solve the value of k.

HENCE THIS IS THE SOLUTION.

#SPJ3.