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What is the perimeter of the triangle expressed as a polynomial if the sides are 4x+1, x-7, 6x+2?

1 Answer

Nov 8, 2016

$perimeter = 11 x - 4$ $"perimeter" =11x-4$

Explanation:

The perimeter of the triangle is the $sum of the 3 sides$ $color(blue)" sum of the 3 sides"$

$\Rightarrow perimeter = (4 x + 1) + (x - 7) + (6 x + 2)$ $rArr" perimeter" =(4x+1)+(x-7)+(6x+2)$

collect like terms.

$= (4 x + x + 6 x) + (1 - 7 + 2)$ $=(4x+x+6x)+(1-7+2)$

$\Rightarrow perimeter = 11 x - 4$ $rArr"perimeter" =11x-4$

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