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3 years ago

Use FOIL to derive the identify for (a+b)^2.

Mathematics

1 answer:

Firlakuza [10]3 years ago

3 0

Answer:

a^2+2ab+b^2

Step-by-step explanation:

FOIL method is First variables Outer variables Inner variables Last variables

(a+b)^2 rewritten is (a+b)(a+b)

F - a*a

O - a*b

I - a*b

L - b*b

a*a+a*b+a*b+b*b

simplify

a^2+2ab+b^2

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IrinaVladis [17]

Answer:

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Step-by-step explanation:

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3 years ago

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expeople1 [14]

Answer:

7 ( 3x + 5y) = 21x+35y

Step-by-step explanation:

Step 1 : apply the distributive law. ("the law relating the operations of multiplication and addition")

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7 ( 3x + 5y) = 7 x 3x + 7 x 5y

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2 years ago

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3 years ago

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liraira [26]

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3 years ago

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zheka24 [161]

Answer:

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Step-by-step explanation:

Since we only know the measure of the angles, we can only say the triangles are similar, not congruent. We need at least one side measurement on each triangle to determine if the triangles are congruent. And it would have to be the same side measurement. Then we could use ASA (Angle side Angle) or AAS ( Angle Angle side) to determine congruence.

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3 years ago

Use FOIL to derive the identify for (a+b)^2.​

Use FOIL to derive the identify for (a+b)^2.