Question

A quadratic equations whose one root is 3 is​

Answer 1

Answer:

What is the quadratic equation whose one root is 3? Quadratic equations have two roots. Restricting one root to be equal to 3, has no effect on he other root, which can be any number. Thus, there is an infinite number of quadratic equations that have one root equal to 3.Sep

Step-by-step explanation:

Answer 2

Step-by-step explanation:

1) x² + 2x - 15 = 0

x²+5x-3x-15 =0

x(x+5)-3(x+5)=0

(x-3)(x+5)=0

x= 3 , -5

2) x²-9 =0

x= 3 ,-3

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