anonymous
  • anonymous
Solve x2 − 7x + 12 = 0. x = −3, x = −4 x = 3, x = 4 x = 2, x = 6 x = −2, x = −6
Linear Algebra
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
factor the left part of the equation
welshfella
  • welshfella
x^2 - 7x + 12 = 0 x^2 -4x - 3x + 12 = 0 now factor the above by grouping
welshfella
  • welshfella
- that means factor x^2 - 4x and - 3x + 12 then simplify

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
I agree
anonymous
  • anonymous
@DarkMoonZ what did you get after following @welshfella directions
anonymous
  • anonymous
Ok wait
anonymous
  • anonymous
x (x - 4) and 3(4-x)
anonymous
  • anonymous
Sorry I had been AFK lol and thanks @welshfella
welshfella
  • welshfella
first one is write notice it -3 x + 12 negative 3
anonymous
  • anonymous
oh ok
anonymous
  • anonymous
so its -3(4-x)
welshfella
  • welshfella
no its -3( x - 4) If you expand that you'll see it comes bakc to -3x + 12 so we got x(x - 4) - 3(x - 4) = 0
anonymous
  • anonymous
Ok
welshfella
  • welshfella
now e can simplify this further because there is (x - 4) in both parts
welshfella
  • welshfella
so take x - 4 out and what have we got left?
anonymous
  • anonymous
-3x=0
anonymous
  • anonymous
or just X = -3
welshfella
  • welshfella
no what i mean by taking x - 4 out is using it as a factor and what left becomes the other factor similar to 3 x + 3y - 3 is common to both 3x and 3y so we take 3 'out' and it becomes a factor 3x + 3y = 3 (x + y) The x+ y becomes the other factor.
anonymous
  • anonymous
oh ok....
welshfella
  • welshfella
x(x - 4) - 3(x - 4) = 0 (x - 4) is common so we take it out and whats left ( the x - 3 0 goes in the other parentheses so we have (x - 4)(x - 3) = 0
welshfella
  • welshfella
now either x - 3 = 0 or x - 4 = 0 making x = 3 , 4
anonymous
  • anonymous
Ok
anonymous
  • anonymous
thanks

Looking for something else?

Not the answer you are looking for? Search for more explanations.