# 7.5 - DIFFERENT exponents!! 2 x + 1 ( ) 0.5-3 x + 4 ( )...

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1 Warm Up Simplify: x 3 ( ) 4 / 3 + x - 3 x 5 - 4 x ( ) 2 + 125 8 1/ 3 Objective • To Solve Radical Equations. – Radical Equation: An equation that has a variable in the radicand or with a rational exponent. Isolating the Exponent 3 + x = 10 2 + 3 x - 2 = 6 You Try! HW#3 • Solve for X: x + 3 = 5 Using Rational Exponents • Solve: 2 x - 2 ( ) 2/ 3 = 50 You Try! HW#10 3 x + 3 ( ) 3 / 4 = 81

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2 Extraneous Solutions? • When solving for “X” some solutions may have multiple answers. x - 3 ( ) 1/ 2 + 5 = x You Try # 17 3 x + 13 - 5 = x Equations w/ Two Rational Exponents • CANNOT combine terms with
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Unformatted text preview: DIFFERENT exponents!! 2 x + 1 ( ) 0.5-3 x + 4 ( ) 0.25 = You Try! # 27 3 x + 2 ( ) 1/ 2-2 x + 7 ( ) 0.5 = Word Problem (Yes on Quiz) • The Volume of a cube is 72 meters cubed. What is the length of one side of the cube? Practice Work • P. 388 3-10, 13, 17-19, 25-27, 31, 34-38 – If you get hung up, try a similar odd numbered problem; then check your answer in the back of the book to measure your understanding....
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## This note was uploaded on 05/13/2011 for the course MTH 98 taught by Professor Johnson during the Fall '09 term at Grand Valley State University.

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7.5 - DIFFERENT exponents!! 2 x + 1 ( ) 0.5-3 x + 4 ( )...

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