Answered

Welcome to Westonci.ca, the ultimate question and answer platform. Get expert answers to your questions quickly and accurately. Get detailed and accurate answers to your questions from a community of experts on our comprehensive Q&A platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

need help fast what are all the solution to this problem

Need Help Fast What Are All The Solution To This Problem class=

Sagot :

[tex] x^{2} - 25 = 0 \\ x^{2} = 0 + 25 \\ x^{2} = 25 \\ x = \pm \sqrt{25} \\ \boxed{x = \pm 5}[/tex]

correct alternatives : C , D
AL2006
x² - 25 = 0

The left side is the difference of 2 squares,
so we know right away, without any uncertainty
or sweat, that it can be written as

                   (x + 5) (x - 5) ,

and we know that it's equal to zero when either factor is zero.

Now let's look at the choices:

A.  X = -1  Not a chance.

B.  X = -3  Also no.

C.  X = -5  Yes that's good; that would make the first factor zero.

D.  X = 5    Yes that's good too; it would make the second factor zero.

E.  X = 3    Not true.  Don't know how they came up with it.

F.  X = 1    Equally not true.
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.