Question

simplify the expression
4(3x+2)-5(7x+5)

Answer 1

whats the 1st step? do u know?

Answer 2

The x values

Answer 3

combine all like terms

Answer 4

how about expanding the brackets by multiplying the 4(3x+2) and -5(7x+5)

Answer 5

what do u get when u expand 4(3x+2)

Answer 6

12x+2?

Answer 7

no 4*3x+4*2

Answer 8

Ohhhhh I see 12x+8

Answer 9

good now what do u get when u expand -5(7x+5)

Answer 10

-5*7x+(-5)*5

Answer 11

-35x+-25

Answer 12

-35x-25

Answer 13

Right, you don't keep the addition sign.

Answer 14

so we can now write the expanded problem
12x+8-35x-25

Answer 15

now group like term and simplify

Answer 16

Now we combine 12x-35 and 8-25
??

Answer 17

yes 12x-35x+8-25

Answer 18

now add/subtract like terms we get?

Answer 19

we get -23x+-17

Answer 20

-23x-17 correct

Answer 21

Thank you. That addition sign will throw me off, so don't put it when you have a negative ?

Answer 22

correct its like
example 4x+(-1)
we write 4x-1

Answer 23

Ohhh I see, so I could add the addition sigh.
I just need the parentheses

Answer 24

sign*

Answer 25

yes but it simplify and more neat when we just have 1 sign instead of 2 sign
eg.. 4x^2 - 3x -6
than 4x^2 +(-3x)+(-6)

Answer 26

You helped me a ton, thank you.

Answer 27

welcome