Math 123A Sample Final             −3   5Simplify        x+ x             8    6Evaluate b2 – 4ac if a = -3, b = 2, c = -2...
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Sample fin

  1. 1. Math 123A Sample Final −3 5Simplify x+ x 8 6Evaluate b2 – 4ac if a = -3, b = 2, c = -2.Solve the following equationsA. 2x - 3 = 5x + 3 - x B. 3(2x -3) - 6 = 5 - 2(4 - x) 4 16 3( x − 4) 1 x C. − x =− D. =− + 5 3 8 4 2Solve and draw the solution.A. 5x > 3 – 2x, B. 2x / 3 ≤ 2x – 1,Multiply, expand and simplify(2x –5) ( 2x – 5 ) – ( x + 2)( 3x – 2 )Factor completely. If it is not factorable, state so:25x2 – 49 x2 – 5x + 6x2 + 2x – 1 E. – y2 – 9Use ac-method to determine if it’s factorable. Factor it if it is.a. 2x2 – 5x + 2 a. 3x2 – 5x – 2Solve the following equations:A. x2 = 13x – 36 B. 9x2 – 12x + 4 = 0 C. x3 = 4xSimplify and leave the answer in positive exponent: ( 2 x 2 y 4 ) −3 B. 3 −2 * 2 − 2 0 A. x −5 y 2Solve the following system 2x – 3y = - 2 x – 2y = 1Graph the following equation in x and y. Label your lines as A, B. Label the x and yintercepts.A. 3y = 2x + 6 B. 2x - y = 4 C. 4 – x = 7 D. 5y + 3 = -7The length of a rectangle is 2 ft less than three times the width. The area of the rectangle is 40 ft2.What are the length and width? (Set up and solve an equation)Given the total area below is 55 ft2, find the width x.

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