Is it a,b,c or d??

1) solve log(x-3) +log(x-2) = log(2x+24)

a)x=9

b)x= -2

c)x= -2, and x=9

d)x= -9

2)If (x-3) is a factor of f(x)=2X2 + ax-3,the value of a is:

a)5

b)3

c)-5

d)-3

- July 23rd 2010, 11:52 PMsoso4can anyone help me with these questions? what is the correct answer?
Is it a,b,c or d??

1) solve log(x-3) +log(x-2) = log(2x+24)

a)x=9

b)x= -2

c)x= -2, and x=9

d)x= -9

2)If (x-3) is a factor of f(x)=2X2 + ax-3,the value of a is:

a)5

b)3

c)-5

d)-3

- July 24th 2010, 12:01 AMmr fantastic
1) Using a well known log rule, the equation simplifies to log[(x-3)(x-2)] = log(2x+24) => (x-3)(x-2) = 2x + 24. Either solve this equation or test each option. If you want to solve the equation, please show all your work and say where you get stuck if you need help.

2) If (x - 3) is a factor then f(3) = 0. Solve for a. - July 24th 2010, 12:37 AMsoso4
- July 24th 2010, 03:59 PMmr fantastic