Question: Multiply as indicated and simplify. 15) (2a -4 )(2a 2 -8a-6) Solve the equation by factoring. 16) 6k 2 =7+19k Solve the equation by completing

Multiply as indicated and simplify.

15) (2a-4)(2a2 -8a-6)

Solve the equation by factoring.

16) 6k2 =7+19k

Solve the equation by completing the square.

17) x2 +14x+29=-12

Solve the equation by use of the quadratic formula.

18) 5b2 =4b+2

State the excluded values for the following expression. Then simplify the expression.

19) (x2-2x-3) / (x2-8x-9)

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