Mathematics, 24.10.2020 17:50, mhuang35

1. (x + 2y)2 + (x - 2y) Step 1: (x + 2y)2 = x2 + 4xy + 4y2
Step 2: (x - 2y)2 = x2 - 4xy + 4y?
Step 3: (x2 + 4xy + 4y?) + (x2 - 4xy + 4y?) = 2x2 + 8y2
What special products were used to solve the problem?
Aside from multiplication, what other algebraic processes did you use to solve the
problem?
2.
[(3x) (2x) - (2y)(-4y)]
Step 1: (3x) (2x) = 6x
Step 2:
Step 3:
Step 4:
Multiply the subtrahend.
Combine like terms.
Square the binomial.
What special products were used to solve the problem?

Answers: 1

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1. (x + 2y)2 + (x - 2y) Step 1: (x + 2y)2 = x2 + 4xy + 4y2
Step 2: (x - 2y)2 = x2 - 4xy + 4y?...