please help me to do this question fast it's very urgent
Answers
Answer:
4, 12/5
Step-by-step explanation:
When it's multiple choice, the quickest and simplest thing can be to eliminate wrong options rather than work out the right one.
The first option includes 3 as a solution, but that would make the first term 1/0, and we can't divide by 0. So we can rule out that option.
The fourth option includes 2 as a solution, but that would make the second term 2/0, so again we can rule that out.
The second option has 1 as an option. That's easy to check. Put x=1 into the equation. The left hand side becomes 1/(1-2) + 2/(1-2) = -1-2 = -3 and the right hand side becomes 8/1 = 8. So 1 is not a solution and we can rule out this option.
That just leaves the third option, with solutions 4 and 12/5.
If we really want to, we can put those numbers in to check, but it's not necessary.
Hope that helps!
Answer:
x= 12/5, x= 4
Step-by-step explanation:
(x-2+2x-6 )x= 8(x-3)(x-2)
3x^2 -8x = 8(x^2 - 5x + 6)
3x^2 - 8x = 8x^2 - 40x + 48
0= 5x^2 - 32x + 48
x= 12/5, x= 4
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