Question

1. State whether K is the root of the equation y²-(k - 4) y - 4k = 0​

Answer 1

Answer:

yes k is the root of equation

Step-by-step explanation:

y^2-(k-4)y-4k=0

Put y=k

• k^2-(k-4)k-4k
• k^2-k^2+4k-4k
• 0

Since, the remainder is zero, hence, k is the root of the given equation.