ray-lewis_609b7db2b76e5
ray-lewis_609b7db2b76e5
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(x+150) = (6x-150) elevavmos ambos ao quadrado x² + 22500 = 36x² - 22500 x² - 36x² = - 22500 - 22500 -35x² = - 4500 35x²=4500 x²= 4500/35 x² =900/7 é por ai