Step by Step Solution
Step by step solution :
Step 1 :
Equation at the end of step 1 :
(3x213 • x) - 10 = 0Step 2 :
Trying to factor as a Difference of Squares :
2.1 Factoring: 3x214-10
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A2 - AB + BA - B2 =
A2 - AB + AB - B2 =
A2 - B2
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 3 is not a square !!
Ruling : Binomial can not be factored as the
difference of two perfect squares
Equation at the end of step 2 :
3x214 - 10 = 0
Step 3 :
Solving a Single Variable Equation :
3.1 Solve : 3x214-10 = 0
Add 10 to both sides of the equation :
3x214 = 10
Divide both sides of the equation by 3:
x214 = 10/3 = 3.333
x = 214th root of (10/3)
The equation has two real solutions
These solutions are x = 214th root of ( 3.333) = ± 1.00564
Two solutions were found :
x = 214th root of ( 3.333) = ± 1.00564How did we do?
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