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How to find the products of binomials

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4 votes

Answer:

FOIL Method! (EXPLAINED BELOW)

Explanation:

FOIL MEANS First Out In Last.

For example:

Binomial: (a+b) (a+b)

STEP 1: Multiply the first term of each bracket.

(a+b) (a+b)

So, a * a = 
a^(2)

The number would be positive since both terms are positive.

STEP 2: Multiply the outer terms.

(a+b) (a+b)

So, a * b = ab

The number would be positive since both terms are positive.

STEP 3: Multiply the inner terms.

(a+b) (a+b)

So, a * b = ab

The number would be positive since both terms are positive.

STEP 4: Multiply the last terms.

(a+b) (a+b)

So, b * b =
b^(2)

The number would be positive since both terms are positive.

STEP 5: Put them together with the appropriate signs.


a^(2) + 2ab + b^(2)

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