Question

Simplify:
(k/2)(5k-1) + 5(k+1)-3

Answer 1

I ended up with 20^2 + 2 (which I think is incorrect). What did you come up with?

Answer 2

I don't know what to do with the k/2...i distributed the second part. got 5k+2

Answer 3

I'm not supposed to solve for K, just combine it into one equation

Answer 4

you can't solve for anything, there's no equal sign, you can only simplify it, it's not an equation, it's an expression

Answer 5

when I move from what you said you did I come up with 20k^2 - 2

Answer 6

its part of a mathematical induction equation

Answer 7

so this isn't the entire problem?

Answer 8

well its supposed to look like ((k+1)/2) (5k+4). I need to get that top expression to look like that

Answer 9

(k/2)(5k-1) + 5(k+1)-3 = ((k+1)/2) (5k+4)

Answer 10

is this the answer at the back of the text?

Answer 11

yeah, but I need to show the steps how I got the answer

Answer 12

do you get it?

Answer 13

yeah, hold on

Answer 14

ok

Answer 15

ok well i was getting it wrong so here
http://www.wolframalpha.com/input/?i=Simplify%3A+%28k%2F2%29%285k-1%29+%2B+5%28k%2B1%29-3
multiply the k+1 by the 1/2 and you'll get your answer

Answer 16

ok great...thanks

Answer 17

you're welcome