# Gr. 10 math

posted by .

Factor by Grouping.please show me the steps!!!!!!!

1.) y2+11y+30

2.) x2+4x-5

3.) a2-a-56

• Gr. 10 math -

what multiples to the last term, and add to the second?

1) 6,5
2) 5,-1
3) -8,7 Notice when signs are different, you place the sign of the middle term on the larger

So, on 3, for instance...the answer is..
(x-8)(x+7)
you do the others, I will check if you need it.

## Similar Questions

1. ### math

fator out the greatest common factor: 11y-22 11y-22 = 11y - 2*11 = 11*something What is the something?
2. ### 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... …
3. ### FACTORING

I can't figure out how to factor this. I know you use the technique Factor by Grouping. But can someone explain to me how to factor this problem by using factor by grouping technique. Problem: 30x^3 + 18x^2 - 5x - 3. Thanks so much:) …
4. ### 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
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

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
7. ### 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.)
8. ### 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
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

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

More Similar Questions