A Garden 7m By 12m Will Be Expanded By Planting A Border Of Flowers.The Border Will Be Of The Same Width Around The Entire Garden And Has An Area Of 9

A garden 7m by 12m will be expanded by planting a border of flowers.the border will be of the same width around the entire garden and has an area of 92m²

 

Answer:

Let x=border

(2x+7)(2x+12)=92

(2x+7)(x+6)=46

2x²+19x+42=46

2x²+19x=46-42

2x²+19x=4

2x²+19x-4=0


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