Question

is x equals to 5 solution of the equation X ^ 2 - 2 x minus 15 =0 ​

Answer 1

Answer:

x =−5 or x = 3

the factors of - 15 which sum to + 2 are + 5 and - 3

⇒(x+5) (x−3)=0

equate each factor to zero and solve for x

x+5=0=−5

x−3=0⇒x=3

Answer 2

Answer:

this is answer

Step-by-step explanation:

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