PLEAE SHOW STEPS 6n3-9n2,-l5n = 6x(2x + 1)2 - 15x2(2x + 1) = Perform the indicat

Question

PLEAE SHOW STEPS

6n3-9n2,-l5n = 6x(2x + 1)2 - 15x2(2x + 1) = Perform the indicated operations and reduce to lowest terms possible. Represent all compound fractions as simple fractions reduced to lowest terms. 2/5b - 4/3a3 - 1/6a2b2 = 3x/3x2 - 12x + 1/6x = x/x2 - 16 - x+4/x2 - 4x = (x + y)2 - x2/y = x-1 + y-1/x-2 - y-2 = Change the following expression from radical form to rational exponent form: Change the following expression from rational exponent form to radical form:2x1/2 - 3x2/3 = Rationalize the denominator. Solve the equations for x. x2 = 5x 3x2 -21 = 0 x2 - x - 20 = 0 -6x2 + 7x = 1

Explanation / Answer

9(c) . (^{x2}- x -20 = 0 implies (^{x2}- 5x +4x -20 = 0 implies x(x-5) +4 (x-5) = 0 This implies either (x-5)(x + 4)= 0 This implies either x -5 = 0 or x +4 = 0 . This implies either x = 5 or x = -4

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