(2x+3)(x-7)

Please help

Hello User,

I will walk you threw to solve this problem..

Solve  :    2x+3 = 0  

Subtract  3  from both sides of the equation :  

                     2x = -3

Divide both sides of the equation by 2:

                    x = -3/2 = -1.500

Solve  :    x-7 = 0  

Add  7  to both sides of the equation :  

                     x = 7

So x can equal 7 or -3/2

Hope i helped i was glad to help and i hope you have a great rest of your day!

-Philaeagles14

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.