Asked by katie A
x² – 35 = 2x
how do I solve this?
how do I solve this?
Answers
Answered by
MathMate
Arrange it so all the terms are on the left hand side:
x²-2x-35=0
Factorize, i.e. look for two integers that multiply together will give -35, and when added together will give -2.
-1*35=-35, but -1+35=34, not good
-5*7=-35, but -5+7=+2 (not -2) not good
However, we only have to change the signs to get
5*-7=-35, 5+(-7)=-2 OK
So the factors are:
(x-7)(x+5)=0
THis means either (x-7)=0, or (x+5)=0,
or x=7, or x=-5
x²-2x-35=0
Factorize, i.e. look for two integers that multiply together will give -35, and when added together will give -2.
-1*35=-35, but -1+35=34, not good
-5*7=-35, but -5+7=+2 (not -2) not good
However, we only have to change the signs to get
5*-7=-35, 5+(-7)=-2 OK
So the factors are:
(x-7)(x+5)=0
THis means either (x-7)=0, or (x+5)=0,
or x=7, or x=-5
Answered by
diego
-6 = -( x- 5) -3 ( 5+ 2x) -4 (2x -4) solve for x
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.