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Simplify (4x^3y^-6)(2xy^6)

2 Answers

7 votes

22xy6 • (2x3y - 3)

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "y6" was replaced by "y^6". 1 more similar replacement(s).

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(((4 • (x3)) • y) - 6) • 2xy6

Step 2 :

Equation at the end of step 2 :

((22x3 • y) - 6) • 2xy6

Step 3 :

Step 4 :

Pulling out like terms :

4.1 Pull out like factors :

4x3y - 6 = 2 • (2x3y - 3)

Trying to factor as a Difference of Cubes:

4.2 Factoring: 2x3y - 3

Theory : A difference of two perfect cubes, a3 - b3 can be factored into

(a-b) • (a2 +ab +b2)

Proof : (a-b)•(a2+ab+b2) =

a3+a2b+ab2-ba2-b2a-b3 =

a3+(a2b-ba2)+(ab2-b2a)-b3 =

a3+0+0+b3 =

a3+b3

Check : 2 is not a cube !!

Ruling : Binomial can not be factored as the difference of two perfect cubes

Multiplying exponents :

4.3 21 multiplied by 21 = 2(1 + 1) = 22

Final result :

22xy6 • (2x3y - 3)

User Mandar Jogalekar
by
5.8k points
6 votes

Answer:

8x^4

Explanation:

User Wangnick
by
4.8k points