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1) A square has a side length of 3x. Find the perimeter as an algebraic expression. 2) Expanding brackets : ( x + 2 ) ( x + 4 ) 3) Expanding brackets : ( x - 6 ) ( x + 2 )

1) A square has a side length of 3x. Find the perimeter as an algebraic expression. 2) Expanding brackets : ( x + 2 ) ( x + 4 ) 3) Expanding brackets : ( x - 6 ) ( x + 2 )
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1) A square has a side length of 3x. Find the perimeter as an algebraic expression.

2) Expanding brackets : ( x + 2 ) ( x + 4 )
3) Expanding brackets : ( x - 6 ) ( x + 2 )

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User Sbp
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8.9k points

1 Answer

11 votes
1) A square has 4 congruent sides, and the perimeter is the sum of these 4 sides. So perimeter = 3x+3x+3x+3x, which can also be expressed by 4(3x), simplified, it equals to 12x.
2) x^2 + 6x + 8
3) x^2 - 4x - 12
answered
User Jacobhyphenated
by
8.4k points
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