MEDAL IF YOU SOLVE!!!!

Simplify the expression 5x − (3x^2 + 9x)

Question

MEDAL IF YOU SOLVE!!!!

Simplify the expression 5x − (3x^2 + 9x)

anonymous · Answer

@UsukiDoll  @

usukidoll · Answer

1. distribute the negative on the entire right hand side of the equation
2. combine like terms and simplify

usukidoll · Answer

-(3x^2+9x) 
distribute the negative
so what's (-1)(3x^2)
and what's (-1)(9x)?

anonymous · Answer

-9x

usukidoll · Answer

true
what about (-1)(3x^2) ?

anonymous · Answer

-3x^2

usukidoll · Answer

yes so now we have $$5x-3x^2-9x$$

usukidoll · Answer

we just have to combine like terms I see a 5x-9x .. since both have x only they can be combinable.

anonymous · Answer

it said to simplify the answers are 

a. -3x^2 − 4x
b  -3x^2 + 14x
c  3x^2 − 4x
d   3x2 + 14x

usukidoll · Answer

yeah we're on the right track just got to solve 5x-9x
I'll factor the x out to make it easier to solve

x(5-9) so what's 5-9?

usukidoll · Answer

hint: answer is going to be negative for 5-9

anonymous · Answer

-4

anonymous · Answer

so that means we can mark out B and D

usukidoll · Answer

yes so now we have x(-4) which is -4x
-3x^2-4x

anonymous · Answer

yay thanks heres medal

usukidoll · Answer

:) and here's a medal for attempting to solve the problem

anonymous · Answer

yayyy my first medal!! ty