What is the solution to ?
A.
x = 5 or x = –7
B.
x = –5 or x = 7
C.
x = 5 or x = 7
D.
no solutio

Question

What is the solution to ?
A.
x = 5 or x = –7
B.
x = –5 or x = 7
C.
x = 5 or x = 7
D.
no solutio

anonymous · Answer

equation is  X^2-35=2x

johnweldon1993 · Answer

We can subtract 2x from both sides to make the equation = 0 , then use the quadratic formula

x² - 2x - 35 = 0

can you do this?

anonymous · Answer

$$x^2 -35 = 2x$$
$$x^2-2x-35=0$$
Find the roots
You will end up with...
$$(x-7)(x+5)=0$$

So when is this equation true?

anonymous · Answer

okay @johnweldon1993  @DoYourHomework  thank you

johnweldon1993 · Answer

no problem!

anonymous · Answer

so 	
x = 5 or x = 7?

johnweldon1993 · Answer

not quite....remember those numbers have to multiply together to = -35

7 Times 5 doesn't equation -35 ...it does = 35

One of those numbers has to be a negative...Look again what @DoYourHomework wrote above :)

anonymous · Answer

x = 5 or x = –7 or 	
x = –5 or x = 7