anonymous
  • anonymous
Quadratic Equation: (x-4)(x-6)=2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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terenzreignz
  • terenzreignz
You're supposed to find x, am I right? :)
anonymous
  • anonymous
haha i dont know :) i think yes?
terenzreignz
  • terenzreignz
Well, perform the FOIL method on (x-4)(x-6). You get...?

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anonymous
  • anonymous
what will you do with 2?
terenzreignz
  • terenzreignz
Patience :) FOIL method on the left-hand-side you get x² - 10x + 24 right?
anonymous
  • anonymous
yes
terenzreignz
  • terenzreignz
so... x² - 10x + 24 = 2 Now you can more clearly see what to do with the 2, am I right? ;)
anonymous
  • anonymous
.....
anonymous
  • anonymous
you cant find x
anonymous
  • anonymous
then what is it?
anonymous
  • anonymous
use FOIL
anonymous
  • anonymous
know what that is?
anonymous
  • anonymous
yes. i got x^2-10x+24=2
anonymous
  • anonymous
then whats next?
terenzreignz
  • terenzreignz
Now add -2 to both sides
anonymous
  • anonymous
what?
terenzreignz
  • terenzreignz
Well, transpose 2, from the right side to the left... x² - 10x + 22 = 0
anonymous
  • anonymous
oohh i get it. then what?
terenzreignz
  • terenzreignz
Use the quadratic formula. Everything falls into place.
anonymous
  • anonymous
i really cant. please help me :(
terenzreignz
  • terenzreignz
Given your equation in the form ax² + bx + c = 0 Your x values are given by \[\huge \frac{-b \ \pm \ \sqrt{b^2-4ac}}{2a}\]
terenzreignz
  • terenzreignz
Plug in and solve.
anonymous
  • anonymous
what is my a ? my b is 10? my c is 24 ?
anonymous
  • anonymous
i mean my c is 20?
terenzreignz
  • terenzreignz
your b is -10 not just 10 a is 1, as there is no coefficient.
terenzreignz
  • terenzreignz
c is 22, not 24. Look again.
anonymous
  • anonymous
oh okay :) then whats next?
anonymous
  • anonymous
ill just solve it?
terenzreignz
  • terenzreignz
Yep.
anonymous
  • anonymous
i think we're going to do a standard equation not quadratic equation?!
anonymous
  • anonymous
standard form rather

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