caroline-rose_60b14491750a0
caroline-rose_60b14491750a0
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(36)/(x+4) = (5+x)/(2) 72 = 5x + x² + 20 + 4 x x² +9 x - 52 = 0 delta = 81 + 208 = 289 delta = 17 x' = ( -9 +17) / 2 = 4 x" = (-9-17) / 2 = - 13 R = 4 _____________ ___________ 12 , 18 ,20 perimetro = 50 o outro…