SOLUTION: (x+2z)(2x+z)..?? How to solve the given above problem using (a+b)(a-b) identity and 4ab=(a+b)^2 - (a-b)^2 identity...??

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: (x+2z)(2x+z)..?? How to solve the given above problem using (a+b)(a-b) identity and 4ab=(a+b)^2 - (a-b)^2 identity...??       Log On


   

Question 624904: (x+2z)(2x+z)..??
How to solve the given above problem using (a+b)(a-b) identity and 4ab=(a+b)^2 - (a-b)^2 identity...??
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
(x+2z)(2x+z)..??
How to solve the given above problem using (a+b)(a-b) identity and 4ab=(a+b)^2 - (a-b)^2 identity...??
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There's nothing to solve. Equations are solved.
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(x+2z)(2x+z)..??
= x*(2x+z) + 2z*(2x+z)
= 2x%5E2+%2B+xz+%2B+4xz+%2B+2z%5E2
= 2x%5E2+%2B+5xz+%2B+2z%5E2
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How to solve the given above problem using (a+b)(a-b) identity and 4ab=(a+b)^2 - (a-b)^2 identity...??
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(x+2z)(2x+z) is not a sum and difference, like (a+b)(a-b)