mahrosh135
Answered

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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 )

Sagot :

lee067
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
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