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2 years ago

Multiply (2x + 2y)(2x + 2y)

Mathematics

2 answers:

Maslowich2 years ago

7 0

Answer:

4x² + 4y² + 8xy

Step-by-step explanation:

( 2x + 2y ) ( 2x + 2y ) = ( 2x + 2y )²

Formula : -

( a + b )² = a² + b² + 2ab

Here,

a = 2x

b = 2y

( 2x + 2y )²

= ( 2x )² + ( 2y )² + 2 ( 2x ) ( 2y )

= 2²x² + 2²y² + 8xy

= 4x² + 4y² + 8xy

FinnZ [79.3K]2 years ago

3 0

The answer is 4x^2 + 8xy + 4y^2

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S_A_V [24]

Answer:

$x=6\\y=4$

Step-by-step explanation:

Elimination method:

$x+5y=26$

$-x+7y=22$

Add these equations to eliminate x:

$12y=48$

Then solve $12y=48$ for y:

$12y=48$

$y=48/12$

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Write down an original equation:

$x+5y=26$

Substitute 4 for y in $x+5y=26$ :

$x+5(4)=26$

$x+20=26$

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3 years ago

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Semenov [28]

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DedPeter [7]

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Step-by-step explanation :

Formula used to calculate the volume of square pyramid is:

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h = height of pyramid

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Now putting all the given values in the above formula, we get:

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