anonymous
  • anonymous
x2 + 8x + 12 = 0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
x = -2; x = -6 x = -2; x = 6 x = 2; x = 6 x = 2; x = -6
anonymous
  • anonymous
whichh one?
anonymous
  • anonymous
x=-6,-2

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More answers

anonymous
  • anonymous
so your first one
anonymous
  • anonymous
thanks!
anonymous
  • anonymous
(x + 7) (x - 15) = 0
anonymous
  • anonymous
The quadratic factors as (x+6)(x+2)=0 so the solutions are x=-6 or x=-2.
anonymous
  • anonymous
x = -7; x = 15 x = -7 x = 15 x = 7; x = -15
anonymous
  • anonymous
which one
anonymous
  • anonymous
You need an equation first
anonymous
  • anonymous
(x + 7) (x - 15) = 0
anonymous
  • anonymous
same thing as above: x=-7 and x=15
anonymous
  • anonymous
x=-7 or x=15...they're both solutions.
anonymous
  • anonymous
x2 + 5x = 6 x = 1; x = -6 x = -1; x = -6 x = -1; x = 6 x = 1; x = 6
anonymous
  • anonymous
x=-6,1 x=-6,x=-1
anonymous
  • anonymous
A,B,C,D?
anonymous
  • anonymous
Smitty - when you factor as ( )( ) = 0, it means either the first factor is zero, the second is zero or they're both zero. The equation's true then for those x-values that make a factor equal to zero. x2 + 5x - 6 =0 -> (x+6)(x-1)=0 so the answer is x = -6 or x = 1.
anonymous
  • anonymous
x = -1; x = -6 B!
anonymous
  • anonymous
x(x - 8) = 9 x = -1; x = 9 x = -1; x = -9 x = 1 x = 1; x = -9
anonymous
  • anonymous
x=-1,9 A
anonymous
  • anonymous
Smitty, you have to expand the left-hand side, subtract 9 from both sides and either factorize or complete the square or use the quadratic equation to figure out x.
anonymous
  • anonymous
x2 - 4 = 0 x = 2; x = -2 x = -2 no solutions x = 2
anonymous
  • anonymous
x = +2 or -2
anonymous
  • anonymous
x=2
anonymous
  • anonymous
(x + 6) (5x - 3) 5x2 - 27x - 18 5x2 + 30x - 18 5x2 + 27x - 18 5x2 + 27x + 18
anonymous
  • anonymous
sorry accidently hit enter early x = 2, -2
anonymous
  • anonymous
i got it wrong haha ohwell
anonymous
  • anonymous
5x^2+27x-18
anonymous
  • anonymous
x2 - 10x + 21 = 0 x = 3; x = -7 x = 3; x = 7 x = -3; x = 7 x = -3; x = -7
anonymous
  • anonymous
x=3,7 B
anonymous
  • anonymous
x2 - 4 = 0 x = 2; x = -2 x = 2 no solutions x = -2 9. Multiply the binomials: (3x + 4) (5x - 4) 15x2 + 8x - 16 15x2 + 8x + 16 15x2 + 20x - 16 15x2 - 8x - 16 10. Find the solution(s) for x: x2 + 7x + 10 = 0 x = -2; x = 5 x = 2; x = 5 x = 2; x = -5 x = -2; x = -5 Session Complete
anonymous
  • anonymous
x2 - 4 = 0 x = 2; x = -2 x = 2 no solutions x = -2
anonymous
  • anonymous
Ok well I can't do all of your hw for you. sorry
anonymous
  • anonymous
just one more?
anonymous
  • anonymous
Ok choose 1!
anonymous
  • anonymous
what?
anonymous
  • anonymous
thanks for all theeee help before
anonymous
  • anonymous
I can do one more but only one more and no problem

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