3x square - 6x + 3=0
1 answer:
Answer: 1
Step-by-step explanation:
First you need to multiply 3 x 3 (9), because that's all 3 squared means.
Now the equation should be 9x-6x+3=0
Next we need to combine like terms. Do 9x - 6x which should give you 3x
Now your equations should be 3x+3=0
Now for the somewhat harder part...
Under the three (the one without the x) write -3 and under the zero write the same thing. the +3-3 cancels out so just put a line or something across it.
0-3= -3
so now you should have...
3x=-3 ignore the 3x, at this point it's useless in getting the answer because it would cancel out.
-3 divided by -3 is 1 because a negative (-) divided by a negative (-) equals a positive (+).
The answer should be x = 1
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subsitute f(x) with y
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solve for y
x=
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the answer is f⁻¹(x)=
to solve for the inverse of a function you do 4 steps:
1. subsitute f(x) with y
2. switch y and x places
3. solve for y
4. subsitute y with f⁻¹(x)
so we have
f(x)=
subsitute f(x) with y
y=
switch x and y
x=
solve for y
x=
cube both sides
subtract 2 from both sides
subsitute y with f⁻¹(x)
f⁻¹(x)=
the answer is f⁻¹(x)=
Answer:
The answer to your question is: 83 + 6
Step-by-step explanation:
This is a square of a binomial.
(2 + 3
1.- Square of the first term
( 2 = 4(5) = 20
2.- Twice the product of the two terms
(2)(2(3
= 6
3.- Square of the second term
(3 = 9(7) = 63
4.- Write the solution
20 + 6 + 63
83 + 6