Answer: What information tell me and i will try to help you as soon as possible :)
Step-by-step explanation:
4x² + 23x = -28
4x² + 23x + 28 = 0 move all terms to one side.
4x² + 16x + 7x + 28 = 0 split the second term into two terms
4x(x + 4) + 7(x + 4) = 0 factor.
(x + 4)(4x + 7) = 0 factor.
x = -4, -7/4
hope this helps, God bless!
Answer:
5,6 and 9, 10 so E and F
Step-by-step explanation:
If it is question 9 of 1a
I am using the laws:
1)

2)

3)

an x is a base - the law is valid if the bases are the same number!
The solution in attachment :)
Answer:
s=5
Step-by-step explanation:
As you can see, you have a whole block that is 20. Then you have another block that is broken down to 4 squares.
So....
4s=20
divide 4 to 4s
divide 4 by 20
so s=5