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anonymous
 one year ago
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anonymous
 one year ago
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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The radical equation is the last equation. All of the other problems are not radical equations because they don't have radical solutions. 1.) √17x−3=19 Add 3 to both sides. √17x−3+3=19+3 √17x=22 Solve Square Root. √17x=22 17x=222 (Square both sides) 17x=484 17x/17 = 484/17 (Divide both sides by 17) x=484/17 2.) √17−3=19x Flip the equation. 19x=1.12 Divide both sides by 19. 19x/19=1.12/19 x=0.06 3.) √17−3x=19 Simplifies to: −3x+4.123106=19 Subtract 4.123106 from both sides. −3x+4.123106−4.123106=19−4.123106 −3x=14.876894 Divide both sides by 3. −3x/−3=14.876894/−3 x=−4.958965 4.) √17x−3x=19 Add 3x to both sides. √17x−3x+3x=19+3x √17x=3x+19 Solve Square Root. √17x=3x+19 17x=(3x+19)^2 (Square both sides) 17x=9x^2+114x+361 17x−(9x2+114x+361)=9x^2+114x+361−(9x^2+114x+361) (Subtract 9x^2+114x+361 from both sides) −9x2−97x−361=0 x=−b±√b2−4ac/2a (Use quadratic formula with a=9, b=97, c=361) x=−(−97)±√(−97)2−4(−9)(−361) / 2(−9) x=97±√−3587 / −18
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