(2y + 30)(y + 4) = 84
2y2 + 38y + 120 = 84
y2 + 19y + 18 = 0
(y + 18)(y + 1) = 0
y + 18 = 0
y = -18
y + 1 = 0
y = -1
y = -18 or y = -1
Eric F.
asked • 05/07/18Length = 2y+30 width = y+4 area =84 ft2
I need to solve for y for area of a rectangle
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