posted by .

Factor by Grouping. PLEASE SHOW ME THE STEPS!

1.) 6x2-21xy+8xz-28yz
just to make it clear,the 2 infront of -21
is actualli an Exponent 2.

2.) x2+5x+7x+35

from now on, please use the notation 6x^2 to show 6x2.

both of your question are ideally set up for 'grouping'

6x2-21xy+8xz-28yz , I will factor the first two and then the last two
= 3x(2x - 7y) + 4z(2x - 7y)
now the 2x-7y is the common factor

= (2x-7y)(3x+4z)

(by expanding our answer we can see that it is correct if we get the original question back, we do!)

now you do the second one, and let me know how you did.

## Similar Questions

1. ### math,help,factoring

i need help i don't know how to do the next step. factor by grouping x^3-3x^2+4x-12 so what i have so far is this =(x^3-3x^2)+(4x-12) =x(x^2-3x)+4(x-3) from here i don't know... and then this one is driving me insane this next one... …
2. ### Algebra

How do you simplify the following and please show all work. (-3x(-4 exponent)y(3 exponent) ______________________________ (2x(5 exponet) y(-2 exponent) then the whole equation is in ()with a -2 exponent
3. ### factor the trinomial by grouping

15x^3-9x^2-6x Can someone please show me how to factor completely.. trying to learn how to do factoring
4. ### Gr. 10 math

Factor by Grouping.please show me the steps!!!!!!! 1.) y2+11y+30 2.) x2+4x-5 3.) a2-a-56
5. ### Gr. 10 math again!

Factor by Grouping.Thanks Bob. PLEASE SHOW ME THE STEPS! 1.) 6x2-21xy+8xz-28yz just to make it clear,the 2 infront of -21 is actualli an Exponent 2. 2.) x2+5x+7x+35
6. ### Gr. 10 Math!

Factor by Grouping. PLEASE SHOW ME THE STEPS! 1.) 8a^2+12ab-3b^2-2ab 2.) x^2+5x+7x+35 3.)
7. ### Gr.10 Math!!!! urgent

Factor by Grouping. PLEASE SHOW ME THE STEPS! 1.) 8a^2+12ab-3b^2-2ab 2.) x^2+5x+7x+35
8. ### Math

Factor each expression by grouping. Can you please show me the steps on how you get your answer so I know how to do the problem thank you. 9p^2+mn^2+9m+p^2n^2
9. ### math

Factor each expression by grouping. Can you please show me the steps on how you get your answer so I know how to do the problem thank you. 9p^2+mn^2+9m+p^2n^2
10. ### Math

Let K(x)= (sin(3x-7)) / (e^x-2) (I'm sorry if it is not clear here, but the denominator in K(x) has the natural number, e, to the power of just x. So "x-2" is not the exponent. "x" is the exponent). The Question: Does K(x) have a horizontal …

More Similar Questions